Theia Yachting keeps four sailing catamarans on the Nha Trang side of its business, all leaving from Ana Marina, all sold as private charter, all with an identical inclusion list. Four boats, four prices within two hundred dollars of each other, and a choice that turns entirely on how many people you are and what you want the deck to feel like.
The price is for the boat, not per head. Half a day, five hours: Coral $1,390, Blue $1,490, Onyx $1,590, Silver $1,590. The ten-hour full day is listed without a price. Capacity does not follow length: the 14.6-metre Blue takes 12 guests, the 14.2-metre Onyx takes 42.
| Boat | Length | Built | Guests | 5 hours | 10 hours |
|---|---|---|---|---|---|
| 1360 Coral | 13.6 m (45 ft) | 2021 | up to 28 | $1,390 | not published |
| 1460 Blue | 14.6 m (48 ft) | 2021 | up to 12 | $1,490 | not published |
| 1580 Onyx | 14.2 m (46.6 ft) | 2026 | up to 42 | $1,590 | not published |
| 1160 lite Silver | 11.6 m (38 ft) | 2019 | up to 15 | $1,590 | not published |
Why is the shortest boat among the dearest?
The 1160 lite Silver is 11.6 metres, the oldest of the four at 2019, and at $1,590 for five hours it shares the top of the list with the far larger Onyx. Read down the table and the pattern becomes clear: price here is not a function of size. A small, older boat with fifteen berths of space is a different product from a large one packed to forty-two, and it is priced as the more comfortable per head, not the bigger.
Capacity does not follow length
This is the number that decides most bookings, and it moves independently of metres. The 14.6-metre Blue is the longest hull of the four and takes twelve guests; the Onyx, forty centimetres shorter, takes forty-two. For a couple or a family of six, the Blue is the whole deck to yourselves. For a birthday party of thirty, only the Onyx works at all.
What is in the price
All four publish the same list, and it is unusually complete for the region: round-trip hotel transfers, welcome drinks, food and beverages, towels, snorkelling equipment, SUP boards, fishing equipment, an inflatable water slide, a professional photographer and an English-speaking guide. All four are TVD/Seawind builds and all four leave from Ana Marina Nha Trang, 01 Nguyen Co Thach Street.
Half day or full day?
The ladder is simple: five hours or ten. The step costs $1,300 on the Coral, $1,400 on the Blue and Onyx, $1,500 on the Silver - in each case slightly less than doubling. A five-hour charter is the standard bay circuit; ten hours is what you need to reach further along the coast and still swim twice.
The other boat out of Ana Marina
If the sailing catamaran format appeals but the private price does not, the same marina is home to the VEGAYACHTS Seawind 1160 day sail. It is quoted at 28,000,000 VND (about $1,077) for the whole yacht, or 2,330,000 VND (about $90) per guest, and runs 08:45 to 14:30 with two swimming and snorkelling stops and a fishing village at 13:35. The boat is built for up to 35 passengers, though the operator itself recommends groups of no more than 25.
How many people should share a private charter?
Enough that the per-head figure stops hurting. Divided by twelve, the Blue's $1,490 is not far from a premium seat on a shared trip; divided by two it is a different kind of purchase entirely.
Where do the boats leave from?
Ana Marina Nha Trang, 01 Nguyen Co Thach Street, in the north of the city. Hotel transfers are in the price on all four Theia boats.
Which one for a large group?
The 1580 Onyx: it is the only one of the four rated for more than thirty guests, and at $1,590 for five hours it is the joint dearest of the four — the cheapest per head all the same.
Updated 4 September 2026. Boat specifications, capacities, prices and inclusions are taken from the operators' own pages.
