8 Essential Items for Your Iceland Hot Spring Trail Packing List

Iceland’s geothermal backcountry offers some of the most spectacular day hikes and multi-day treks in the world, where steaming rivers slice through glacial valleys. However, transitioning from a muddy, windswept trail into a boiling hot spring requires a highly specialized gear strategy. Packing the wrong equipment can turn a relaxing soak into a freezing, uncomfortable ordeal that cuts your adventure short.

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Preparing for Iceland’s Demanding Backcountry Trails

Iceland’s backcountry trails, such as the famous Laugavegur or the paths around Landmannalaugar, demand respect. Trekkers routinely encounter sharp volcanic rock, deep river crossings, and sudden temperature drops, all while seeking out hidden geothermal pools. Preparing for these hikes means selecting gear that handles both active trekking and the transition to soaking.

Unlike standard hiking, hot spring trails require constant packing and unpacking of wet items. Your gear must dry quickly, pack down small, and withstand abrasive volcanic sand and sulfur-rich water. Overlooking these harsh environmental factors leads to ruined gear and shivering hikes back to the trailhead.

Planning for these routes also means accounting for physical comfort during transitions. Active adults need gear that minimizes downtime in the cold wind, ensuring that changing into and out of swimwear is efficient. Balancing insulation with moisture management is the golden rule of Icelandic hiking.

Packable Towel – PackTowl Personal Microfiber Towel

After soaking in a backcountry hot spring, getting dry quickly is critical to prevent hypothermia in Iceland’s cool, windy climate. A heavy cotton towel is useless here; it absorbs too much water, dries incredibly slowly, and adds dead weight to your pack. A high-performance packable towel is non-negotiable for stripping down and drying off efficiently at the pool’s edge.

The PackTowl Personal Microfiber Towel is the gold standard for this task because it absorbs four times its weight in water and dries almost instantly. Its polyester and nylon blend feels soft against sensitive skin, avoiding the scratchy feel of cheaper microfiber alternatives. Its Polygiene odor control treatment also prevents the towel from smelling musty after sitting in a dark pack for hours.

• Material: 85% polyester, 15% nylon microfiber blend
• Sizes: Face, Hand, Body, and Beach (Body size is ideal for trail use)
• Key Feature: Integrated snap loop for easy hanging and drying on the outside of a pack
• Care: Machine washable; avoid fabric softeners which clog the microfiber channels

This towel is perfect for hikers who prioritize fast-drying performance and minimal pack volume. It is not suitable for those who demand the thick, plush feel of a traditional bath towel, nor is it designed to provide heavy insulation on its own. For the practical backcountry trail user, however, the space savings are well worth the trade-off.

Trail Sandals – Chaco Z/Cloud Sport Sandals

Navigating the rocky, slippery approaches to Iceland’s wild hot springs requires sturdy underfoot protection. Walking barefoot on volcanic gravel or slick algae-covered rocks near thermal vents is a recipe for injury. A dedicated pair of trail sandals allows for safe wading and provides comfortable footwear for your feet to breathe after hours in heavy hiking boots.

The Chaco Z/Cloud Sport Sandals feature a rugged ChacoGrip rubber outsole that provides exceptional traction on wet, muddy riverbanks. Unlike flimsy flip-flops, the secure double-strap system wraps around the foot and through the midsole, ensuring the sandal won’t wash away in a swift current. The LUVSEAT PU midsole offers substantial arch support, which is a lifesaver for older hikers who need structural foot support after a long day of carrying a load.

• Strap Material: Polyester jacquard webbing
• Sole: Non-marking ChacoGrip rubber with 3mm lug depth
• Weight: Approximately 21 oz per pair
• Sizing: Only available in whole sizes; size down if you fall in between

These sandals are excellent for wet trail crossings, rocky hot spring entries, and camp wear. They are not recommended for cold-weather hiking without socks, nor are they a replacement for supportive hiking boots on technical ascents. Note that adjusting the continuous strap system can take some patience during the initial break-in period.

Dry Sack – Sea to Summit eVac Dry Compression Sack

Hiking with wet gear is an inevitable part of the hot spring trail experience. Shoving a soaking wet towel and swimsuit directly into your backpack will ruin your dry spare clothes and electronics. A reliable dry sack keeps wet gear isolated from dry gear, or conversely, protects your dry layers from torrential Icelandic rain.

The Sea to Summit eVac Dry Compression Sack solves the classic dry bag problem by using a waterproof, air-permeable eVent fabric base. Instead of struggling to purge air through the roll-top closure, you simply roll it down, and the excess air squeezes out through the bottom. Made from durable 70D nylon, it resists punctures from trail debris while maintaining a lightweight profile.

• Sizes: 3L, 5L, 8L, 13L, 20L (the 8L or 13L is perfect for a towel and swimwear)
• Waterproof Rating: 10,000mm hydrostatic head
• Closure: Roll-top closure with durable buckle
• Best Use: Separating wet swim gear or compressing dry insulation layers

This compression sack is ideal for organized hikers who want to maximize internal pack space while maintaining absolute water protection. It is not meant for submersion or water sports like kayaking where the bag is constantly underwater. Be careful not to over-compress fragile items, as the straps can exert significant force.

Swim Shorts – Patagonia Baggies Five-Inch Shorts

Changing into a swimsuit on a windy, exposed Icelandic trail requires clothing that is highly functional and easy to slip on. Traditional, heavy swim trunks hold water and become heavy, while tight, technical swimwear can be uncomfortable to hike in if you choose to wear them under your pants. A versatile pair of utility shorts that double as swimwear streamlines the entire process.

The Patagonia Baggies Five-Inch Shorts are the ultimate dual-purpose option, constructed from rugged, quick-drying NetPlus 100% recycled nylon made from recycled fishing nets. They feature a durable water repellent (DWR) finish that sheds moisture quickly once you step out of the hot spring. The relaxed fit and comfortable elastic waistband make them easy to pull on and off, even with cold, damp hands.

• Inseam Options: 5-inch (classic) or 7-inch
• Pockets: Deep side pockets with drain-mesh corners to prevent water-ballooning
• Liner: Lightweight, quick-dry black mesh liner
• Sustainability: Fair Trade Certified sewn and made from recycled ocean plastics

These shorts are perfect for active hikers who want one reliable garment for both trail trekking and thermal soaking. They are not suitable for those who prefer compression-style swimwear or highly structured, formal shorts. Be aware that the mesh liner can sometimes feel restrictive to some users, though it can easily be carefully snipped out if preferred.

Rain Jacket – Arc’teryx Beta LT Waterproof Jacket

Iceland’s weather is notoriously volatile, frequently shifting from bright sunshine to driving rain in minutes. Wind-driven rain can quickly saturate standard layers, leading to rapid cooling when you are already damp from a hot spring soak. A premium, windproof, and waterproof outer shell is your primary defense system in the backcountry.

The Arc’teryx Beta LT Waterproof Jacket delivers uncompromising storm protection using lightweight, highly breathable 3-layer GORE-TEX fabric. Its articulated design allows for a full range of motion over thick base layers without riding up. Crucially, the StormHood is fully adjustable and protects the face from sideways rain without blocking peripheral vision.

• Fabric: 3-layer GORE-TEX with a 40-denier nylon face fabric
• Ventilation: Pit zippers for rapid heat dumping during steep climbs
• Pockets: High-set hand pockets accessible while wearing a backpack hip belt
• Weight: Approximately 13.9 oz

This jacket is ideal for hikers facing sustained wind and heavy rain who refuse to compromise on breathability and protection. It is a premium investment, making it less suitable for casual walkers who only hike in fair weather. The high price tag is justified by its long-term durability and reliable performance in harsh, windswept environments.

Insulated Flask – Hydro Flask Wide Mouth Bottle

Soaking in a warm hot spring is incredibly relaxing, but the geothermal heat can quickly dehydrate your body. Conversely, stepping out of a warm pool into a freezing wind makes you crave a steaming, hot drink to warm your core from the inside out. Carrying an insulated flask allows you to transport ice-cold water or piping-hot tea throughout the day, regardless of external temperatures.

The Hydro Flask Wide Mouth Bottle excels at temperature retention thanks to its TempShield double-wall vacuum insulation. It keeps cold drinks icy for up to 24 hours and hot beverages steaming for up to 12 hours. Constructed from professional-grade 18/8 stainless steel, it won’t transfer flavors, meaning morning coffee won’t linger in afternoon drinking water.

• Capacity Options: 20 oz, 32 oz, or 40 oz (the 32 oz balances weight and volume best)
• Coating: Color Last powder coat is slip-free and dishwasher safe
• Lid Compatibility: Works with the Flex Cap, Straw Lid, or Chug Lid
• BPA-Free: Yes, and phthalate-free construction

This flask is excellent for day hikers who want to enjoy a hot beverage or cold water at the turnaround point of their hike. It is not suitable for ultralight backpackers who monitor every ounce, as stainless steel is significantly heavier than plastic bottles. For most recreational trail users, the comfort of a hot drink in a cold Icelandic wind far outweighs the minor weight penalty.

Merino Base Layer – Icebreaker Oasis 200 Crewe

The foundation of any successful Icelandic layering system is a high-quality wool base layer. Cotton holds onto sweat and water, chilling your body as soon as you stop moving or step out of a warm pool. Merino wool, on the other hand, retains its insulating properties even when damp, making it the perfect fabric for transitions.

The Icebreaker Oasis 200 Crewe is crafted from 100% merino wool, offering an optimal balance of warmth, breathability, and next-to-skin softness. Its flatlock seams prevent chafing under heavy backpack straps, while offset shoulder seams eliminate pressure points. Additionally, merino wool is naturally odor-resistant, allowing you to wear it for multiple days without washing.

• Fabric Weight: 200 g/m² (ideal for cool to cold active use)
• Material: 100% Merino Wool
• Fit: Slim, body-hugging fit to maximize moisture transport
• Care: Machine wash cold on a gentle cycle; line dry only

This base layer is a must-have for hikers of all experience levels who require reliable, active insulation in changing climates. It is not recommended for hot, tropical environments where lighter synthetic fabrics perform better. Those with extreme wool sensitivities should test it first, though high-grade merino wool rarely causes the itching associated with traditional wool.

Hiking Pack – Osprey Talon 33 Multi-Day Backpack

Carrying wet towels, swimwear, water bottles, and bulky rain gear requires a backpack designed to distribute weight comfortably. A poorly designed pack will strain your shoulders and lower back, ruining the therapeutic effects of your hot spring soak. A medium-capacity hiking pack ensures you can carry all the essentials without feeling weighed down.

The Osprey Talon 33 Multi-Day Backpack (or the women’s specific Tempest 30) features the highly adjustable AirScape backpanel, which keeps the load close to your body while promoting airflow. The seamless BioStretch harness and hipbelt wrap tightly around your torso, transferring weight efficiently to your hips. The pack’s external hydration sleeve makes refilling water bladders easy without opening the main compartment.

• Capacity: 33 liters (ideal for gear-intensive day hikes and light overnights)
• Pockets: Dual zippered hipbelt pockets, stretch mesh side pockets, and a large front stretch pocket
• Attachment Points: Stow-on-the-Go trekking pole attachment
• Material: High-tenacity bluesign-approved recycled nylon

This pack is perfect for active adults who need a supportive, ergonomic carry system for gear-heavy day hikes or light overnight trips. It is not designed for heavy, multi-day expedition loads exceeding 35 pounds. Its intuitive organizational layout makes retrieving your swim gear fast and simple on the trail.

Essential Hot Spring Etiquette and Safety Rules

Iceland’s wild hot springs are delicate ecosystems that require careful preservation to remain open to the public. Unlike developed spas, natural pools have no chemical filtration systems, meaning cleanliness is entirely up to the users. Always shower thoroughly before entering any pool, and never use soaps or shampoos in or near wild water sources.

Temperature regulation in wild pools is highly unpredictable, with some areas reaching scalding temperatures. Always test the water cautiously with a hand before stepping in, as thermal vents can fluctuate rapidly. Additionally, carry out every piece of trash, including food scraps, as the cold Icelandic climate slows organic decomposition significantly.

Finally, respect the surrounding flora and fragile moss fields. Icelandic moss takes decades to recover once trampled by hikers searching for a changing spot. Stick strictly to established paths when approaching pools, and use designated changing platforms or gravel areas rather than stepping on sensitive vegetation.

How to Manage Changing Weather on Iceland Trails

The old Icelandic proverb, “if you don’t like the weather, wait five minutes,” is a stark reality on the trail. You can easily start a hike in mild sunshine and find yourself in a blinding sleet storm an hour later. Managing this volatility requires a proactive approach to layering rather than waiting until you are freezing to make adjustments.

Always pack away dry layers inside your waterproof compression sack before the rain starts. When transitioning out of a hot spring, work quickly to dry off, put on your merino wool base layers, and seal in body heat with your waterproof outer shell. Never let yourself sit in damp clothing in the wind, as the evaporative cooling effect can lower your body temperature rapidly.

Pay close attention to wind warnings from local weather services before heading out. High winds in Iceland can easily push hikers off balance on exposed ridges and make trail navigation dangerous. If conditions deteriorate rapidly, prioritize finding shelter or heading back to the trailhead over completing your planned hot spring soak.

Final Gear Check Before Heading to the Trailhead

Before leaving your accommodation or vehicle, lay out all your gear for a final, structured check. Confirm that your dry sack is securely sealed and that your rain jacket is easily accessible at the top of your pack. Make sure your insulated flask is filled with hot water or tea, providing a reliable heat source should you get chilled.

Check that your trail sandals are securely buckled to the outside of your pack or stowed in an easy-to-reach pocket. Double-check local trail conditions and weather forecasts via reliable Icelandic safety apps before starting your GPS tracker. Proper preparation transforms a potentially cold, stressful trek into a seamless, therapeutic wilderness experience.

With the right gear packed and safety precautions in mind, you are fully prepared to experience the magic of Iceland’s geothermal heart. Taking the time to invest in quality, functional layers ensures your focus remains on the breathtaking landscape rather than cold feet. Strap on your pack, step onto the trail, and enjoy the ultimate backcountry soak.