Board a traditional longtail at Ao Nang and chase a disappearing sandbank — the Separated Sea appears only at the day’s lowest tide. This full-day Krabi tour combines snorkeling, limestone caves, and a chance to walk between islands when conditions align.
More ways to explore the area's outdoor wonders
Salt spray and limestone rise as you push off Nopparatthara pier at first light; a wooden longtail cleaves glassy Andaman water while gulls test the wake. The boat threads between karst fingers, aiming for Chicken Island where a dramatic low tide can expose a white sand causeway linking three islets — the “Separated Sea” that only reveals itself on the day’s lowest ebb.
Difficulty
moderate
Duration
6–8 hours
Fitness Level
Suitable for travelers with basic fitness and comfort in open water; some swimming required for snorkeling.
Wildlife
History
The limestone karst and caves have supported local fishing and spiritual practices for generations; Pranang Cave contains a shrine tied to maritime beliefs.
Conservation
Operators encourage reef‑safe sunscreen and no-touch policies for coral; avoid anchoring on reefs and use designated mooring spots where available.
Reserve your spot on the Separated Sea and 4 Islands - The Unseen of Thailand Full Day Tour From Krabi today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Check low-tide times
The sandbank linking the islands appears only at the day’s lowest tide — confirm tide charts or ask your guide to time the visit.
Bring reef‑safe sunscreen
Chemical sunscreens harm corals; use reef‑safe formulas and apply before boarding to limit runoff.
Wear water shoes
Sandy flats and sharp coral fragments make lightweight water shoes helpful for beach walks and sandbanks.
Secure your belongings
The longtail’s deck is open and spray-prone — use a dry bag and fasten cameras and phones.
Reef‑safe sunscreen
Protects skin while minimizing harm to coral and marine life.
summer
Water shoes
Protects feet on rocky beaches and sandbanks revealed at low tide.
summer
Lightweight dry bag
Keeps electronics and clothes dry on an open-deck longtail boat.
Personal snorkel mask
Better fit and clearer vision than shared rental masks.
summer