Reviewed · REYKJAVIK
Hot and cold G spots challenge
Iceland has a way of making a plain day feel like a field trip, and this hot-and-cold combo of lava caves and soaking steam is genuinely different. I really like the max 4 travelers setup, and I also like that you get all the caving equipment you need. The tradeoff is that caving can involve tight spots, some crawling, and tunnels that ask for at least moderate fitness.
This isn’t a “drive by the view” day. You start with 2 to 4 caves on the Reykjanes Peninsula, then you switch gears and relax in the Reykjadalur Hot Springs, where you sink into a hot stream in a valley setting. You also get a classic Icelandic lunch of hot dogs, which sounds simple, but it works well when you’ve been moving through uneven ground.
One more thing I’d underline is the guide factor. A guide named Damian is specifically praised for sharing knowledge about the rock formations while you crawl, climb over rocks, and move from easier sections to tougher ones as you go. If you like learning while you’re active, that kind of hands-on guidance makes the day feel worth it.
Key things to know before you go
- Max 4 travelers keeps the pacing manageable and gives you real attention in the caves
- Equipment is provided, so you can show up without hunting for gear
- 2 to 4 caves near Reykjavik depending on fit and comfort with tunnels
- Reykjadalur Hot Springs soak is part of the schedule for a full reset after caving
- Hot dogs lunch is built into the day, not an afterthought
- Plan for crawling in some tunnels, and wear heavy duty clothing
A lava-tunnel morning, a hot-stream afternoon

There are days in Iceland that feel like pure contrasts. This tour leans into that. You begin with cold, dark lava caves carved by ancient volcanic activity, where your body does the work and your eyes adjust to stone. Then you end in warm water at Reykjadalur Hot Springs, where you can actually slow down.
What I like about this structure is that it makes sense for your energy. Four hours underground uses your legs, core, and balance. Two hours in the hot springs then helps your muscles recover in a setting that feels like you earned it.
The tour is also positioned around practicality. It starts at 8:30 am in Reykjavik and runs about 6 to 7 hours, so you’re not burning half your trip waiting around. And it’s capped at 4 travelers, which matters in caves where timing, group spacing, and safety all depend on how quickly people move through tight passages.
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Small-group caving that feels personal, not rushed

This is a “small group means attention” kind of experience. With a maximum of 4 people, you’re not getting lost in a crowd. Your guide can slow down when you need it, and they can help route you through sections that are more awkward than expected.
That matters because this is not just looking at caves from a distance. You’re moving through them. The day is designed to progress. You start with easier caves, then move further depending on how you’re doing and how comfortable you are with the tunnels. Some caves may involve crawling, so the group size helps with that kind of pace control.
Another small detail that adds up is the included caving gear. When the tour says all necessary equipment is provided, that’s a real value point. It reduces stress the morning of your tour and it keeps everyone equipped to handle the cave conditions with less guesswork on your end.
Stop 1 at the Reykjanes Peninsula: caves near Reykjavik (and yes, you may crawl)

Your cave time is at the Reykjanes Peninsula, close enough to Reykjavik that this feels like a true full-day trip rather than a long-distance expedition. The plan is to visit 2 to 4 caves, and the exact number depends on your movement through tunnels and your fitness level. Some routes can include crawling, so the guide starts with easier ones and builds from there.
What makes the Reykjanes cave part special
These caves are part of Iceland’s volcanic story in a very physical way. You’re not just reading about lava. You’re walking through it, under it, and sometimes around it. The texture of the rock, the shapes created by ancient flows, and the way the tunnels funnel you all make geology feel hands-on.
Also, the “progress from easier to tougher” approach is smart. It gives you time to adjust to the cave environment before you hit the sections that feel tighter or more demanding.
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The main drawback: tunnels can be tight and physical
Here’s the honest part. If you don’t like crawling, or if you’re worried about moving over uneven rocks in dark spaces, you should take the moderate fitness note seriously. This tour is labeled for moderate physical fitness for a reason, and it’s not positioned as a relaxed stroll.
So go in knowing that you’ll be using your body, not just your camera. Wear confidence, not ego. If you feel unsure on a first tunnel section, you’ll want to trust the guide’s pacing and route choices.
Stop 2 at Reykjadalur Hot Springs: a hot stream in a valley setting

After the caves, you get 2 hours at Reykjadalur Hot Springs. This is the “hot and cold reset” part of the tour, and it’s where most people feel the contrast most clearly.
You submerge yourself in a hot stream, in a valley-like setting where the scenery stays close and readable while you’re relaxing. The hot water is a practical recovery tool after caving. It can help your legs and core loosen up after uneven tunnels and climbing over rocks.
How to think about timing and comfort
Don’t underestimate the emotional shift. Caves force you to focus. Hot springs invite you to breathe, stretch, and let your body cool down after it’s been working hard. If you go straight from cave darkness into steam warmth, you’ll likely feel better right away, but it’s still smart to take it slow at first and find a comfortable spot.
What about the water and safety basics?
The tour description emphasizes getting into the hot stream. Since the exact water depth and entry method aren’t spelled out, you should expect a natural, outdoor setting where you’ll follow your guide’s lead on where to enter and how to move safely.
The hot dog lunch: simple, filling, and timed for energy

The highlight list includes a classic Icelandic lunch of hot dogs. It might sound basic, but it’s a good call for a day like this. After caving, you want something warm and quick that doesn’t require you to think too hard while your body is still adjusting.
I like that it’s built into the day. You’re not hunting for lunch in cold weather while your energy is already spent. You can fuel up, then get ready for the soak without losing time.
Equipment, clothing, and shoes: what to wear so you can enjoy it

This tour is blunt about clothing, and you should listen. You’re told to bring heavy duty clothing that can get dirty while caving, and hiking shoes are recommended. That’s not just caution, it’s the difference between enjoying the caves and worrying about ruining your day.
My practical packing list mindset
- Wear clothes you don’t mind getting grimy
- Use hiking shoes with decent grip
- Bring a layer you can put on after the cave time if you cool down
Also, think about the change from cold cave air to warm hot spring water. You’ll want to be able to dry off or warm up after, even though the tour doesn’t list specific towel or changing options.
Price and value: $270 per person, and where that cost makes sense

At $270 per person, this is not a budget impulse buy. But it can still feel like solid value because several “extras” that can cost money elsewhere are built in.
Here’s what the day already includes based on the tour details:
- Pickup offered (so you’re not handling transport on your own)
- All necessary caving equipment provided
- Hot spring admission included
- Caves have admission ticket marked free for the cave stop
- A classic hot dog lunch
- A small group with a maximum of 4 travelers
When you add those together, the price starts to make more sense. You’re paying for a guided day that combines active caving, entry/admission components, and a long relaxation stop, with gear handled for you.
Booking timing: plan ahead
The tour is typically booked about 20 days in advance on average. That’s a hint you should not wait until the last minute, especially if you’re traveling in a high-demand window.
Weather matters: this is Iceland, so plan for flexibility

This experience requires good weather. If it’s canceled due to poor weather, you’ll be offered a different date or a full refund. That’s important because cave trips and outdoor hot spring access can be affected by conditions.
So I’d treat this as part of your Iceland plan that you schedule with flexibility in mind. If you’ve built your days around a strict timeline, keep at least one buffer day where possible.
Who should book this caving and hot springs day trip?

This tour is best for you if you want:
- A full day that mixes natural landmarks with real physical activity
- A small group where the guide can give attention in tight spaces
- A guided cave route that starts easier and progresses based on comfort
You’ll likely enjoy it most if you’re comfortable with moderate physical activity and you can handle the idea of some crawling in tunnels.
Who might hesitate
If the thought of crawling and climbing over uneven rocks makes you uneasy, you might prefer a less hands-on cave experience. Also, if your idea of a perfect Iceland day is mostly scenic viewpoints and minimal physical effort, this one could feel like more work than you planned.
Should you book G spot Iceland’s caves and hot springs tour?
I’d book it if you want a day that feels like Iceland in two flavors: volcanic rock you move through, and warm water that helps you recover while you take in the valley setting. The small group cap of 4 is a big reason this can feel special, and the fact that equipment is provided plus the hot spring admission is included helps the price feel more reasonable.
I’d skip or switch plans if you’re not comfortable with crawling and you only want easy walking. Also, since the tour depends on good weather, it’s smart to keep your schedule flexible so you’re not stressed if plans change.
If you’re the type who likes doing rather than just watching, this is the kind of Iceland day you’ll remember, because you’ll leave both the caves and the hot springs feeling like you actually participated.
FAQ
Where is this tour located?
The tour is based in Reykjavik, Iceland, and the caves are visited on the Reykjanes Peninsula, followed by the Reykjadalur Hot Springs.
How long does the experience take?
It runs for about 6 to 7 hours.
What time does the tour start?
The meeting start time is 8:30 am.
Is pickup included?
Pickup is offered.
How many people are in the group?
The group maximum is 4 travelers.
How many caves do we visit at Reykjanes Peninsula?
You will visit between 2 and 4 caves, depending on how well you move through tunnels and your fitness level.
Do I need to bring caving equipment?
No. All necessary caving equipment is provided.
What should I wear?
The tour recommends heavy duty clothing that can get dirty while caving, and hiking shoes are recommended.
What are my options if the weather is bad or I need to cancel?
The experience requires good weather. If it is canceled due to poor weather, you will be offered a different date or a full refund. You can cancel for a full refund up to 24 hours in advance of the experience start time.
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