Hon Thom cable car. About 8 km over turquoise water and fishing fleets — the longest sea-crossing cable car in the world. The combo ticket with the Aquatopia water park on Hon Thom island costs around ₫1,000,000 ($38). Ride before 10am for calm light and short queues.
VinWonders Phu Quoc. Vietnam's biggest theme park — rides, a huge aquarium and an evening fountain show. Day tickets run about ₫950,000 ($36); a combo with Vinpearl Safari saves money if you plan both.
Vinpearl Safari. A drive-through safari plus open zoo, well-run by regional standards. Half a day, pairs with VinWonders next door.
Sao Beach. The white-sand postcard beach on the southeast coast — shallow, calm and family-friendly. Free; loungers cost a drink order. Go on a weekday morning.
Island hopping and snorkelling. Boat tours around the southern An Thoi islands with 2-3 snorkelling stops and lunch cost about ₫450,000-₫700,000 ($17-$27) per person. Water clarity is best November to April.
Sunset Town and the Kiss Bridge. A purpose-built Mediterranean-style town at the island's south, with a nightly sunset crowd and a bridge split in two halves that "kiss". Free to wander; it is theatrical, but the sunsets are real.
Phu Quoc Prison museum. The former "Coconut Tree Prison" near Sao Beach documents the island's grim wartime history with preserved cells and exhibits. Entry is free or close to it. An hour is enough, and it pairs naturally with a Sao Beach morning — the one stop here that isn't about sand or rides.
Duong Dong night market. Seafood grills, sugarcane juice and pearl stalls. Vegetarian options exist (grilled corn, noodles) but are limited — resort restaurants cover vegetarians better here.