Why the sea route from Phuket beats the road
The transit math is striking: by road, Phuket to Krabi’s Ao Nang pier is roughly 180 km — three hours-plus each way before you even board a longtail or ferry for the final 30-40 minute crossing to Hong Island. By direct speedboat from Boat Lagoon Marina, the same destination is around 50 km — well under an hour and a half. A road-based Hong Island day trip from Phuket spends most of the day in a van. A sea-route trip arrives early, leaves late, and spends the day at the islands. The other consideration is timing: Hong Island gets busy from late morning onwards as the Krabi-side day boats arrive from Ao Nang. The early sea-route window is materially quieter.
Krabi Luxury Private Charter — from ฿41,690
Simba Sea Trips’ main route into Hong Island is the Krabi Luxury Speedboat Private Charter — an 8-hour private charter for 2 to 20 guests departing Soho Pool Club at Boat Lagoon Marina. From ฿41,690 THB at the base group rate, all-inclusive (transfers, national park fees, light breakfast, buffet lunch, snorkel equipment, soft drinks). The route visits Hong itself, Hong Lagoon, Railay Beach, Chicken Island, and hidden hongs that the day-boat fleet doesn’t reach. For deeper context on the destination — geology, tide windows, the four “hongs” worth visiting — see our long-form Ko Hong Island guide.
What to expect at Hong Lagoon
The hong is a circular interior lagoon enclosed by limestone walls roughly 100 metres tall. Entry is via a low sea-level cave opening on the island’s seaward side — at low tide the opening is clear and easy; at high tide it can close completely, depending on monthly tidal range. The architecture is geological: collapsed cave roofs over millennia left a karst chamber open to the sky inside, accessible only by water through the original cave mouth. The experience inside is the silence — the lagoon’s interior is sheltered from the open sea and from the wind, with only the sound of paddles or distant gulls. Bring reef-safe sunscreen, a dry bag for camera kit, and a hat.
Operator authority — running this coast since 2005
Simba Sea Trips has been running the Phuket and Krabi coasts since 2005 — more than twenty years of operating, with the safety position built across every route we run. The company holds TAT Licence 34/02111 issued by the Tourism Authority of Thailand. Run by an airline pilot of 23+ years with aviation-grade safety standards applied at the operations management level, with Thai-licensed captains and certified crews on every boat. More than 5,814 verified reviews across TripAdvisor, Google, and GetYourGuide back the operating record.