The shoreline

Beaches of Koh Mak

Long stretches of soft sand, shallow turquoise water, and almost no one in sight.

Long white-sand beach lined with palm trees at Ao Kao, Koh Mak

01 · Beach

Ao Kao Beach

The social heart of the island

The island's longest and most developed beach, stretching along the southwest coast. Soft white sand and a gently shelving entry into calm turquoise water, lined with bungalow resorts, small restaurants and massage huts — yet still blissfully quiet by Thai standards. The back road behind the beach is where most of the island's restaurants and shops are clustered.

Best forSwimming, families, easy access, dining
WaterCalm, shallow, very safe for children
VibeRelaxed but sociable — the island's main hub

Golden sunset over the calm sea at Ao Suan Yai, Koh Mak

02 · Beach

Ao Suan Yai Beach

The most spectacular sunsets on the island

A long, sweeping bay on the northwest coast — equally beautiful to Ao Kao but quieter and more upscale. Clear water with views toward the tiny island of Koh Kham just offshore. Ideal for couples and anyone wanting a more private, resort-style experience.

Best forSunsets, swimming, couples, snorkeling toward Koh Kham
WaterCalm and clear
VibeQuieter, slightly more upscale

Secluded palm-fringed cove at Ao Pra, Koh Mak

03 · Beach

Ao Pra Beach

Secluded and intimate

A smaller, more hidden bay on the northwest coast, tucked beside Ao Suan Yai. Home to a handful of boutique resorts and almost no foot traffic — the right choice if you want a beach almost to yourself.

Best forPrivacy, couples, long-stay guests
VibeVery secluded

Wooden Thai longtail fishing boats moored at the Ao Nid pier

04 · Beach

Ao Nid Bay

The local side of the island

Where the main pier sits. Less a swimming beach and more a working waterfront — fishing boats, seafood restaurants, and the island museum. Worth visiting for the authentic local atmosphere.

Best forLocal food, cultural interest, arrivals & departures
Home toKoh Mak Seafood restaurant and the island museum

Black volcanic rocks meet turquoise water at Koh Kham islet near Koh Mak

05 · Beach

Koh Kham (Day Island)

Powder sand, black rocks, perfect snorkeling

Not technically part of Koh Mak, but the most popular day trip — a tiny islet just offshore from Ao Suan Yai with powder-white sand, black volcanic rocks, and excellent snorkeling. Most resorts run daily boat trips, and on calm mornings it's reachable by kayak in about thirty minutes.

Best forSnorkeling, day trips, photography
Getting thereResort boat trip or ~30 min kayak from Ao Suan Yai