The sea is Phu Quoc's biggest attraction after its beaches, and the best way to experience it is by boat. Dozens of operators run trips from the south and from Duong Dong, from simple island-hopping days to private sunset cruises. With so many choices, it helps to know what each type offers, how to pick a good operator and how to plan around the weather.
Island hopping
The classic trip heads to the An Thoi archipelago in the south, a scatter of small islands with clear water, reefs and quiet beaches. Typical trips cover three or four islands with snorkelling stops, a beach break and lunch. A speedboat is fast and covers more ground but can be bumpy and loud, while a larger wooden boat is slower and more relaxed. A smaller group means more time in the water. Many trips include hotel pickup, snorkelling gear and life jackets, but check the details.
Adding the cable car
The four-island tours that include the Hon Thom cable car combine the sea and the sky in one day. You see the islands from the boat and from above, then spend time at the beach park. This is the most efficient option for a one-day visit to the south, although it is a long day. If wind stops the cable car, operators generally adjust the plan, so ask what the arrangement is.
Snorkelling, sea walking and diving
Snorkelling is included in most island trips and suits swimmers of all levels. Sea walking, where you wear a helmet and walk on the sea floor, is perfect for non-swimmers and children who meet the age rules. A discover scuba dive adds a supervised dive for beginners, and certified divers can arrange fun dives with local centres. Reef health varies and visibility depends on the season, so expect good days and less good days. Never touch coral and use reef-safe sun cream.
Sunset and squid fishing
For a relaxed evening, a sunset cruise or a squid fishing trip is hard to beat. Boats head out in the late afternoon, watch the sun go down and then drop lines under lights to try for squid, with dinner served on board. It is social, inexpensive and a perfect fit for couples and groups of friends. Some versions add snorkelling and a barbecue on a small island, for a fuller day.
Choosing an operator and staying safe
Pick a trip with clear information about what is included, group size and the boat type. Make sure life jackets are provided and used, that the crew briefs you on safety and that children are supervised at all times. Avoid trips that seem overloaded, and do not hesitate to say no if the sea looks rough. Travel insurance should cover water activities, and if you have health conditions, tell the operator before you go.
Sample plans
For a first-timer, book a shared three-island trip early in the stay, keeping the following day free in case of weather. For couples, choose a smaller group or a sunset trip with dinner on board. For families, pick a larger, steadier boat with shade and life jackets in children's sizes. For active travellers, add a discover scuba dive or a sea-walk session at Hon Thom. For a splurge, a private charter lets you set the pace, choose the stops and avoid crowds, and it can cost less per person than you expect when shared by a group.
What to bring
Pack swimwear, a rash vest, a hat, reef-safe sun cream, a quick-dry towel, sandals, a dry bag and any seasickness medication. Bring a little cash for tips and extras, and keep your phone in a waterproof pouch. If you wear glasses, a strap helps, and a prescription mask is worth considering for snorkelling. Leave jewellery at the hotel, and tell someone your plans if you are travelling alone.
Weather and timing
Calm seas in the dry season from about November to April make boat days far more reliable, and mornings are usually calmer than afternoons. In the wetter months from roughly May to October, rough water can shorten or cancel trips. Book early in your stay so you have spare days, choose tickets with flexible terms and have a wet-weather plan such as a cooking class. Finally, treat the sea with respect. Take your rubbish with you, do not feed fish unless the crew says it is safe and leave shells and coral where you find them.