A Phang Nga Bay cruise takes you through the dramatic limestone karsts and emerald waters made famous by James Bond. Expect a full-day trip (usually 8-9 hours) with stops at caves, lagoons, and a couple of islands for swimming or kayaking. The boat ride itself is the highlight: you'll pass towering rock formations, mangrove channels, and hidden lagoons. It's scenic but can feel touristy — there will be other boats around, especially at popular spots like James Bond Island. The experience is relaxing if you like being on the water, but it involves a fair bit of travel time from Phuket (about 1.5 hours each way by minivan).
Best time to go is December to March when the sea is calmest and rains are rare. Shoulder months (April, November) are decent too. From June to October the monsoon can make the water choppy and tours get cancelled more often. Expect to pay around $60–$120 per person depending on group size, boat type (speedboat vs traditional longtail), and whether it includes kayaking or lunch. Speedboat tours cost more but let you see more in a day.
Tip: Choose a smaller group tour if possible — the big party boats are loud and chaotic. Skip the overnight options unless you really want the evening squid-fishing part; most people are happy with the standard day trip. Bring reef-safe sunscreen, a hat, and motion sickness tablets if you're sensitive to waves.