Reviewed · HARDER KULM, LAKE BRIENZ & LAKE THUN

Private Sightseeing Boat Trip on Lake Thun, Interlaken

5.0 · 11 reviews 1 hour (approx.) From $263 Operated by Boat Tour Interlaken · Bookable on Viator
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A private boat on Lake Thun is interesting because you get the lake experience without turning it into a crowd-management project. You cruise, you stop, and then you pick your moment for sunset.

I like the private setup for your group, especially since the boat is described as perfect for groups up to six. I also like that Captain Chris runs the show, so you can focus on what is actually happening outside your window, not on timing or steering.

One consideration is that this experience depends on good weather. It’s also about an hour, so it is not a long, wandering day on the water.

Key highlights to know before you go

Private Sightseeing Boat Trip on Lake Thun, Interlaken - Key highlights to know before you go

  • Private boat for your group, so you are not sharing the cruise with strangers
  • Captain Chris keeps things friendly and the boat clean
  • Stops include Schloss Spiez and Merligen, with a sunset watch spot after
  • Pizza is included, so you can snack without crowd lines
  • Mobile ticket and an English-offered experience make it easier to plan
  • Boat up to 12 guests, but it is pitched as ideal for groups up to six

A private Lake Thun boat near Interlaken, without the crowd problem

Private Sightseeing Boat Trip on Lake Thun, Interlaken - A private Lake Thun boat near Interlaken, without the crowd problem
Lake Thun is one of those places where the views do most of the talking. The smart move is doing it by boat, but the even smarter move is doing it privately. This trip is set up so only your group participates, which changes the whole feel of the day. You can relax, talk, and move at the pace you want.

I also like that it is built around a simple rhythm: meet, depart, cruise, and then settle in for sunset. That matters because Lake Thun is scenic in every direction, so you want a plan that gives you time to actually enjoy it, not just sprint from point to point.

More Harder Kulm and Bernese lake trips:

Getting started at Beir Säge in Sigriswil (and what 1 hour really means)

Private Sightseeing Boat Trip on Lake Thun, Interlaken - Getting started at Beir Säge in Sigriswil (and what 1 hour really means)
The meeting point is Beir Säge, 3658 Sigriswil, Switzerland. Since it is near public transportation, you should be able to get there without stress, even if you are staying around Interlaken and timing things carefully.

The trip is about 1 hour, give or take with the flow of the cruise. In practical terms, that time window is perfect for a focused evening plan. You get two named stops plus time to watch sunset, but you are not committing to a half-day schedule.

Also, plan around the format. The boat can transport up to 12 guests, and the experience is described as perfect for groups up to six. If you are a party of two, four, or six, this is the sweet spot for comfort and attention. If you are closer to twelve, you still can do it, but the vibe will feel more like a full boat rather than an intimate private charter.

Schloss Spiez stop: castle sights plus easy lake time

Private Sightseeing Boat Trip on Lake Thun, Interlaken - Schloss Spiez stop: castle sights plus easy lake time
One of the stops is Schloss Spiez. If you like Swiss lakeside drama, this is the kind of place you will notice even before you get close. A stop tied to a named landmark gives you a clear reason to be there, not just a cruise passing by at speed.

What makes this stop useful is that it breaks up the trip. You start cruising on Lake Thun, then you have a point where you can look around, take photos, and reset your brain for the second leg. In a short one-hour experience, that is a big deal. It keeps the trip feeling like more than just sitting and floating.

A small drawback to consider: with only about an hour total, the stop is not going to be a slow, wandering visit. If your goal is detailed sightseeing on land, you may want to pair this with something else later. Think of it as a lake-focused viewing stop, not a deep dive into the area.

Merligen stop: a calmer second chapter on Lake Thun

Private Sightseeing Boat Trip on Lake Thun, Interlaken - Merligen stop: a calmer second chapter on Lake Thun
The itinerary includes Merligen as the second stop. Merligen tends to fit the role of a quieter, more relaxed pause compared with the bigger spectacle of a castle landmark. That is exactly why it works well in the middle of this kind of private cruise.

From a planning standpoint, having Merligen as a stop gives you a mix: you get the landmark energy at Schloss Spiez, then you switch to a more laid-back lakeside feel. It is also a helpful strategy for photos. Changing shorelines means changing light and angles, even in a relatively short time.

One more practical point: because your captain is looking for a good sunset spot after the stops, Merligen helps set you up for the later phase of the trip. You are not stuck waiting for the best moment. You already have a structured viewing window earlier on.

Pizza onboard plus sunset: the simple formula that works

Private Sightseeing Boat Trip on Lake Thun, Interlaken - Pizza onboard plus sunset: the simple formula that works
One of the highlights is that you enjoy a pizza without the crowd scene. That might sound small, but it is a real comfort upgrade on a lake evening. Instead of hunting for food or choosing a restaurant with timing pressure, you have a built-in snack while you are still in the right setting.

Then comes the main event: after departing, the plan is to find a nice spot to watch the sunset. I like this approach because it respects how sunset actually behaves. It is not just a clock time, it is a direction and a conditions time. By cruising to a spot, the trip aims to put you where the light is best.

Captain Chris is specifically noted as friendly and nice, and the boat is described as well maintained and clean. That matters more than you think. A lake cruise is all about comfort. When the boat is cared for and the captain keeps it easy, the whole experience feels effortless.

Price per person: is $263.87 a good value?

Private Sightseeing Boat Trip on Lake Thun, Interlaken - Price per person: is $263.87 a good value?
The price is listed as $263.87 per person for approximately one hour. At first glance, that sounds steep for a short ride. The value question comes down to what you are buying and how you split it.

You are paying for:

  • A private experience where only your group participates
  • A guided setup that includes two specific stops (Schloss Spiez and Merligen)
  • Time aimed at sunset viewing
  • Pizza included
  • A small-group feel, described as perfect for groups up to six

If you travel with family or friends and can fill a smaller group, you are effectively paying to convert Lake Thun into a private evening plan. If you are traveling solo or as a couple, you may feel the cost more sharply, but you still get the benefit of avoiding crowds and enjoying a clean, cared-for boat with a friendly captain.

My take: this is good value when you want a dedicated sunset moment and you care more about comfort and privacy than squeezing in extra stops. It is also a strong choice if you dislike the logistics of shared tours.

Practical notes that actually affect your day

Private Sightseeing Boat Trip on Lake Thun, Interlaken - Practical notes that actually affect your day
A few details matter for planning:

  • The experience is offered in English
  • You get a mobile ticket
  • It is near public transportation, so you are not stuck with only private transport
  • It is described as suitable for most travelers
  • Confirmation is received at booking time unless you book within one day of travel, then it is sent as soon as possible based on availability

Two things to keep in mind for your timing. First, because sunset is central to the experience, arrive ready to go at the meeting point rather than treating the start like a loose suggestion. Second, because the experience requires good weather, have a Plan B in your schedule if skies turn.

Who this Lake Thun private boat trip is best for

Private Sightseeing Boat Trip on Lake Thun, Interlaken - Who this Lake Thun private boat trip is best for
This private Lake Thun boat is ideal if you want a smooth, scenic evening plan and you do not want to share it. It fits especially well for:

  • Couples who want an intimate sunset experience
  • Small groups up to six who want privacy and included food
  • People who prefer a simple itinerary with two clear stops and a relaxed pace

If you are the type who wants hours of walking, museum stops, or big land excursions, this may feel too short. Think of it as a boat-first experience. You are on the water, you pause at two named places, and you end with sunset.

Should you book this private Lake Thun boat trip?

I would book it if your top priority is sunset on Lake Thun with privacy, plus an easy, guided flow. The included pizza makes it more of a complete evening plan than a quick sightseeing ride.

I would pause before booking if you are traveling with a very tight schedule and weather is unpredictable, because the trip is weather-dependent. Also consider your group size. The experience is pitched as perfect for groups up to six, so it tends to shine when you can share it in a small set.

If you want, tell me your group size and the month you plan to go, and I’ll help you decide if this one-hour sunset setup fits your Interlaken schedule.

FAQ

How long is the private sightseeing boat trip on Lake Thun?

The duration is about 1 hour.

What are the stops during the cruise?

The itinerary includes Schloss Spiez and Merligen, with time on the water afterward to watch the sunset.

How many people is the boat designed for?

The boat can transport up to 12 guests, and it is described as perfect for groups of up to six people. It is also a private experience where only your group participates.

What language is the tour offered in?

The experience is offered in English.

Where does the activity start?

The meeting point is Beir Säge, 3658 Sigriswil, Switzerland.

What happens if the weather is poor?

This experience requires good weather. If it is canceled due to poor weather, you will be offered a different date or a full refund.

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