The Best Green Hotels in Koh Samui Islands in 2026

A turquoise sea with boats, kayaks, and a beach.

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Our top choices for Koh Samui Islands eco-friendly hotels

A resort with a large pool, outdoor seating areas, and lush greenery.

A beach with sun loungers and umbrellas, a clear sky, and boats in the water.

A modern buffet setup with various food items and utensils, a central serving area, and a kitchen in the background.

A modern hotel with a curved roof, a central fountain, and lush greenery.

1. Melia Koh Samui

Koh Samui

Alina

₩259,811

₩308,396 total

includes taxes & fees

Oct 9 - Oct 10

A beachside lounge with seating and tables, palm trees, and a view of the ocean.

A beachside dining setup with a canopy, tables, chairs, and lanterns.

An aerial view of a resort with multiple bungalow-style buildings surrounded by dense palm trees.

A modern bar area with a view of the ocean, large windows, and hanging spherical light fixtures.

2. Santiburi Koh Samui

Koh Samui

Juliette

₩278,077

₩330,078 total

includes taxes & fees

Sep 29 - Sep 30

A infinity pool with a clear view of the sea, outdoor seating, and a covered area with umbrellas.

A modern bathroom with two large bowls and a faucet, large windows with a view of trees and the sea.

A bedroom with a large bed, a wooden headboard, a nightstand, a bedside table, and a view of the ocean through large windows.

A bedroom with a canopy bed, a TV, and a wooden bench.

3. Silavadee Pool Spa Resort

Koh Samui

Teresa

₩263,553

₩312,838 total

includes taxes & fees

Oct 8 - Oct 9

A infinity pool with palm trees, a beach, and a resort building.

An outdoor seating area with round tables and chairs, surrounded by lush greenery and a wooden deck.

An outdoor bar area with thatched-roof structures, wicker furniture, and hanging lanterns.

An aerial view of a resort with multiple wooden-roofed villas, a central swimming pool, and surrounding greenery.

4. Anantara Lawana Koh Samui Resort, Chaweng

Koh Samui

Emma

₩274,922

₩326,332 total

includes taxes & fees

Oct 5 - Oct 6

A poolside area with lounge chairs and umbrellas, overlooking a large body of water and distant land.

A restaurant with tables and chairs, a view of a lush green landscape, and a body of water in the distance.

A modern living room with wicker furniture, a white sofa, and a blue accent wall.

A modern hotel room with a bed, sofa, and a large abstract painting on the wall.

5. Mantra Samui Resort - Adults Only

Koh Samui

mary jayne

₩106,661

₩126,607 total

includes taxes & fees

Sep 14 - Sep 15

A resort with overwater bungalows, a central pool, and a view of the ocean.

A beach with clear blue water, white sand, and lush green foliage.

An outdoor dining area with wooden tables and chairs, overlooking a body of water with palm trees.

A modern outdoor seating area with a view of the ocean, a pool, and a traditional wooden structure.

6. TUI BLUE The Passage Samui Pool Villas with Private Beach Resort

Koh Samui

"We have just left the hotel this morning and we was sad to leave! everything was perfect, the staff, room, food, pool, even the security men outside! everything was amazing, the location of hotel was perfect for us we hired a car to get about which the hotel helped organise, we didn't want to be staying in the busy areas so this was nicely tucked away with its own beach. We will happily return here next year ❤️"

Helen

₩79,614

₩94,501 total

includes taxes & fees

Sep 18 - Sep 19