Sunset Destination · Koh Samui

Koh Som & Thongson Bay

The finest golden hour on the Gulf of Thailand — a private sunset cruise to Koh Som and Thongson Bay, where the sky ignites in amber and rose above perfectly calm waters.

Koh Som is a small, largely undeveloped island sitting just off the southern coast of Koh Samui. Its quiet waters and elevated silhouette make it one of the most dramatic foregrounds for sunset viewing in the Gulf of Thailand — the kind of scene that looks better in person than any photograph can convey.

Thongson Bay, tucked into the northeast of Koh Samui, is a sheltered bay of crystal-clear water flanked by lush jungle hillsides. At golden hour, the bay turns a deep molten bronze as the sun descends behind the hills — a moment that stays with guests long after their trip ends.

Together, Koh Som and Thongson Bay form the signature Sunset Cruise route aboard the SERE 71FT — a 2-hour private journey designed purely around the spectacle of dusk on the water.

Locations

Koh Som Island & Thongson Bay, Koh Samui

Best Time to Go

17:00 – 19:00 (2-hour sunset window)

Sea Conditions

Calm, sheltered — suitable year-round in good weather

Ideal For

Couples, anniversaries, celebrations, romantic evenings

Group Size

Up to 60 guests (base price covers 25)

Vessel

SERE 71FT — Luxury Private Catamaran

Island Stop

Koh Som

A small, pristine island off Samui’s southern coast. Koh Som’s gentle shores and lush backdrop create a perfect natural frame as the sun begins its descent. Anchor here for calm-water drift, soft drinks on deck, and front-row views of the western sky turning gold.

Island Stop

Thongson Bay

One of Koh Samui’s most beautiful and tranquil bays — crystal-clear water enclosed by jungle-draped hills. As the catamaran glides through Thongson at dusk, the light shifts from gold to deep rose, reflecting off the mirror-flat surface. A scene that defines the Koh Samui sunset experience.

Why This Route Works

The Golden Hour Window

The cruise departs at 17:00 and returns at 19:00 — timed precisely around the Koh Samui sunset window, which runs between 18:00 and 18:45 depending on the season. The route takes you west toward Koh Som first to catch the sun at its lowest and warmest, then swings through Thongson Bay on the return as dusk settles across the water. It’s a 2-hour window, but one that guests consistently describe as the most memorable part of their Koh Samui holiday.

Spectacular Sunsets

The Gulf of Thailand's western horizon produces some of Southeast Asia's most dramatic sunsets — amber, rose, deep crimson. No two evenings are the same.

Calm, Sheltered Waters

Both Koh Som and Thongson Bay are naturally sheltered, making for a smooth, comfortable cruise even if the open sea is slightly choppy elsewhere.

Premium On-Board Service

Soft drinks, ice, and seasonal snacks are included. Settle into the SERE 71FT's spacious deck with a cold drink as the light changes around you.

Photography Heaven

The combination of open water, island silhouettes, and changing light creates extraordinary photography opportunities — ideal for couples and social content.

Exclusively Private

No strangers, no shared tours. The SERE 71FT is reserved entirely for your group — creating an intimate atmosphere perfect for romantic evenings and celebrations.

Perfect for Groups

With capacity for up to 60 guests, the SERE 71FT is ideal for birthday parties, anniversary dinners, team outings and private celebrations at sea.

High Season

Dec – Apr
Clear skies, calm seas, and the most vivid sunsets of the year. Book well in advance.

Best Sunsets

Shoulder Season

Jan – Feb, Oct
Excellent visibility and comfortable temperatures. Fewer crowds at peak points.

Recommended

Mid Season

May – Jun
Some afternoon showers possible but mornings and evenings often clear. Good value.

Wet Season

Oct – Nov
Higher chance of rain and rougher sea conditions. Sunset cruises subject to weather check.

Departure Time

17:00 daily (returns 19:00). Arrive at the pier 15 minutes before departure.

Boarding Point

SERE 71FT pier, Koh Samui. Exact pier details confirmed at booking.

What to Bring

Light jacket (evenings can be breezy on the water), camera, sunglasses.

Included

Soft drinks, ice, seasonal snacks, life jackets, Bluetooth speaker, English-speaking crew.

Note on Waterslide

The SERE 71FT waterslide is available on 4-hour programs and above — not on the 2-hour sunset cruise.

Weather Policy

Cruises operate in good weather. We monitor forecasts and will contact you 24 hrs before if conditions require rescheduling.

Book the Sunset Cruise

Sunset Cruise

฿45,000 / up to 25 guests

Quick Facts

Typical Conditions · Sunset Hour

What time does the Sunset Cruise depart?

The cruise departs at 17:00 and returns at 19:00 — a 2-hour window timed precisely around the Koh Samui sunset, which typically falls between 18:00 and 18:45. Please arrive at the pier 15 minutes before departure.

What is included in the Sunset Cruise price?

The price includes soft drinks, ice, seasonal fruit and snacks, life jackets, towels, Bluetooth speaker, and a professional English-speaking crew. Note that the waterslide is not available on the 2-hour sunset cruise — it is included on 4-hour charters and above.

How many guests can join the Sunset Cruise?

The base price of ฿45,000 covers up to 25 guests. Additional guests are charged at ฿1,500 per person, up to the vessel’s maximum capacity of 60 guests. All prices are exclusive of 7% VAT.

What happens if the weather is bad?

We monitor weather forecasts closely and will contact you at least 24 hours before your cruise if conditions require cancellation or rescheduling. In the event of a weather cancellation on our side, you receive a full refund or a free reschedule — whichever you prefer.

Is the Sunset Cruise suitable for a romantic occasion?

Absolutely — it’s one of our most popular bookings for couples celebrating anniversaries, honeymoons, and proposals. The boat is private, the setting is spectacular, and the 2-hour window aligns perfectly with the most beautiful part of the evening. We are also happy to arrange special touches — please mention this when booking.

SERE 71FT · Half Day

Half Day Morning Charter

From ฿65,000 / group · 09:00–13:00

SERE 71FT · Full Day

Ang Thong Marine Park