Koh Mak (Trat)

Small, scenic, and eco-minded, Koh Mak is tailor-made for couples who love slow travel. Choose a bungalow on Ao Kao or Ao Suan Yai, then hop by kayak or hire a local boat to the black-lava shorelines of Koh Kham for a picnic with postcard views. Longtail charters are simple to arrange through beachfront resorts, with fair rates and flexible itineraries. After dark, Koh Mak is among Thailand’s most reliable spots for bioluminescent plankton, often visible right off the beach on moonless nights. Walk ankle-deep along quiet stretches, keep lights off, and swirl the water to spark the glow. Daytime is for cycling through coconut groves, sipping coffee at minimal-waste cafés, and reading beneath casuarinas. With flat roads, calm seas in February, and a community feel, Koh Mak delivers a peaceful, planet-friendly Valentine’s escape.