Volcano, hot springs, and a quiet island—fast. I like how this trip feels small-group from the start, and the timing keeps the ride calm as you slip out from Fira Old Port. The captain (Panagiotis) and the staff are also easy to deal with, especially if plans shift due to the day’s sea and schedules.

My other favorite part is the hot springs stop: you get a real chance to soak in warm geothermal water, and the boat throws in practical extras like foam pool noodles and a glass of local white wine. That turns a quick swim into a relaxing break instead of just another stop.

One thing to think about: the volcano walk is self-guided, meaning you’re responsible for your footing on the lava rock and for how far you push yourself. It’s doable, but it’s not a casual stroll.

Key things you’ll notice on this Santorini caldera boat trip

• A smaller boat and easier pacing compared with the big-boat crush at the same islands
• Friendly captain and crew help (Panagiotis and Manos are named in past experiences)
• Hot springs you can actually enjoy, with noodles and a warm-water swim time
• Thirassia feels real and quieter, with free time in Manolas for food and wine
• Volcano time is on your own, so plan for stairs, heat, and careful walking
• Extra local costs to budget, including cable car and Nea Kameni entrance fees

Setting off from Fira Old Port: the starting point matters

The tour starts at Santorini Sea Trips – Anemos at Old Port (also called Fira Port), right below the cliffs in Thira/Fira. It’s a classic “you’re already in the picture” harbor spot, with steps going up to town, plus options like the cable car or donkeys for getting between levels.

That 30-minute window at the harbor is actually useful. You can grab a coffee or a bite, use restrooms, and get your bearings before the boat heads out into the caldera. If you’re staying in Fira or you’re using the cable car to move between heights and the water, timing your trip matters.

One practical note: your ride is about 5 hours total (approx.), starting around 10:15 am. That means you’ll be back mid-afternoon, with the rest of the day left for a sunset viewpoint or a slower dinner in Oia/Fira.

Nea Kameni volcano: great views, hard shoes, and no guide on the island

The boat sails about 20 minutes to Nea Kameni, the volcanic island tied to Santorini’s famous volcanic activity. From there, you’ll have about 1 hour 15 minutes to walk around on your own and climb toward the crater rim for those dramatic views.

This is the part of the trip that turns “sightseeing” into “active.” The ground is lava rock, and you’ll want proper footwear with grip. Past experiences also point out that the hike can be tough in summer heat—so go early in the day and don’t treat this stop as an optional stroll.

There’s also an extra cost here: Nea Kameni entrance is €5 per person (not included), and you may need cash. The key point: there is no guided hike with you on the volcano, so you’re responsible for safety and pace. If you’re traveling with someone who struggles with steep climbs, this part can decide whether the overall trip feels great or stressful.

If you want the best payoff, don’t rush straight to the top. Take a moment, breathe, and pick a manageable path that matches your comfort level. The views are the reward, but your energy is the ticket.

Palea Kameni hot springs: warm water, sulfur stains, and real swim time

After the volcano, the boat heads to Palea Kameni for the hot springs stop. You get about 30 minutes, and this one is included as part of the experience—no extra island entry needed.

The hot springs are geothermal water with sulfur and other volcanic minerals. You may see how the water can be intense on skin and gear: sulfur can leave stains on light-colored swimwear. If you’re bringing a new, light swimsuit, consider wearing something darker or something you don’t mind sacrificing.

Two very practical details you’ll thank yourself for:

• The boat provides foam pool noodles, which makes the water time more relaxing.
• You’re not just standing at the edge. The water is deep, and you may need to keep swimming constantly to stay in the warm zone. Competent swimmers will feel most comfortable here.

Also, these stops depend on everyone getting on and off the boat in time. If there’s any timing crunch, you might get less time than you expect in the water. Still, the goal is clear: warm geothermal soak time, not a quick photo stop.

Thirassia island: a real taste of Greek island life (Manolas time)

Then you reach Thirassia, the smaller island that used to be part of Santorini before the major eruption centuries ago. This is the most “contrast” stop: where Fira and Oia can feel packed, Thirassia is more laid-back and traditional.

You’ll have about 1 hour 15 minutes here, and you can wander the winding alleys and Cycladic-style houses at your own pace. The main village is Manolas, and it’s where you’ll find local taverns serving food and wine. This is a good moment to eat something unhurried, especially if you’ve been doing quick meals in the bigger towns.

One of the best parts of the Thirassia segment is that it’s not just for photos. You can actually choose: quick snack, proper lunch, a glass of wine, or just a slow wander and a view break. The island has a calmer rhythm, and that makes it feel like a genuine “different day, different place,” not just another stop on a list.

On board: restroom, noodles, towels, and a simple white wine break

Back on the boat, the small comforts add up. You’ll have restroom access, plus foam noodles ready for the hot springs swim. You also get a towel (returnable), plus a bottle of water, which is helpful because you’ll be outside a lot.

And yes, there’s also a drink: one glass of white local wine included. It’s a nice way to slow down after the heat and walking—especially with sea breeze doing its job.

A heads-up from real-world notes: the open water ride can feel choppy at times. That’s not unusual in the caldera, but if you get motion sickness easily, plan for it. Also, pack a layer for wind and occasional spray. One practical travel note from prior experiences: bringing a wind jacket or hoodie can make the ride more pleasant.

The value question: is this $83 boat tour worth it?

At around $83, this is a solid half-day option if you want the specific mix: volcano + hot springs + Thirassia. Where the value gets even better is the small-group setup (max 24 travelers) and the chance to reach stops before the biggest crowds.

But don’t ignore the add-ons:

• Cable car: not included, listed at €10 each way
• Nea Kameni entrance: €5 per person
• Food: not included (Thirassia gives you time to eat on the island)

So the real “budget number” is your $83 plus local entrance/cable car costs. If you’re already planning to use the cable car down/up to Old Port, you’ll likely pay anyway—this tour just bundles your time efficiently.

Where you might decide it’s not for you is if you want a fully guided experience on the volcano and hot springs. Past experience feedback shows some groups wished for more info while walking around. If you want a lot of narration, you may need to lean on your own curiosity or a separate guide at another stop.

Timing and safety reality: what can change during the day

This tour runs on a schedule, but the caldera is the caldera. Sea conditions and the speed of boarding can shift timing. When timing gets tight, the hot springs stop may feel shorter than you hoped, and the Thirassia free time can feel more rushed than the headline “1 hour 15 minutes.”

Safety is mostly straightforward but important:

• Volcano walking is on your own
• Wear safe footwear
• Heat can be a factor
• Hot springs swim time is for swimmers who can handle deep water

If you’re traveling with kids, it can still work, but the “swim” portion is the deciding factor. The water needs respect, and the trip is built for getting into the geothermal area, not just hovering at the edge.

Who should book this Santorini boat trip

I think this tour makes the most sense if you:

• Want a half-day plan that covers three big Santorini experiences without committing to a full-day tour
• Prefer smaller groups and a calmer feel around the islands
• Can handle a volcano hike on rocky ground
• Like “free time” on an island where you can choose your own rhythm (Thirassia is ideal for this)

It may be less ideal if you:

• Struggle with steep climbs or uneven footing
• Won’t swim in deep water (hot springs are not a shallow splash zone)
• Want nonstop guided commentary at every stop (the volcano time is unescorted)

Should you book: my practical take

If your dream Santorini day is nature first, then a quiet island, this boat tour is a strong pick. The small-group feel, the hot springs time with noodles, and the Thirassia break from crowded streets make it worth looking at.

Before you book, do two quick checks:

1) Are you comfortable with a self-guided volcano hike and the heat?

2) Are you willing to budget a little extra for cable car (€10 each way) and the €5 Nea Kameni entrance?

If you can answer yes to both, you’re likely to love the balance here: active volcano views, a real warm soak, then a calmer island lunch in Manolas.

FAQ

How long is the Santorini boat tour?

It’s about 5 hours (approx.).

What time does the tour start?

The start time is listed as 10:15 am.

Where do I meet for the tour?

You meet at Santorini Sea Trips – Anemos, Old Port, Santorini, Thira 847 00, Greece.

Is the ticket mobile?

Yes, the tour uses a mobile ticket.

What entrance fees or extra costs should I plan for?

Cable car tickets are not included (listed at €10 each way). Nea Kameni has an entrance fee of €5 per person (not included).

Is the volcano hike guided?

No. The volcano hiking/walking is done on your own, with no guide on the island.

What hot springs items are included?

The hot springs stop is included, and the boat provides foam pool noodles.

Are towels and water provided?

Yes. A towel is provided (returnable), and there is 1 bottle of water included.

Is the hot springs swim shallow?

No. The hot springs area is deep, and you may need to swim constantly to stay in the warm area.

What if the tour gets canceled due to weather?

The experience requires good weather, and if it’s canceled due to poor weather, you’ll be offered a different date or a full refund.

Can I cancel for a full refund?

Yes. You can cancel up to 24 hours in advance for a full refund. If you cancel less than 24 hours before the start time, the amount paid is not refunded.