The Three Capes Track, on the southeast Tasman Peninsula, has been officially opened at a cost of $25 million.

Despite its name, the 46km track reaches only two of the three capes. The state government has plans to extend it and $4 million is in the bank to go toward finishing the project.

So far there have been 2500 bookings, and the first walkers are preparing to start the trail.

Each person will pay $500 for the three-night, four-day walk, which includes a boat trip and accommodation with cooking and shower facilities.

The cost has raised questions from community groups, but the state and federal governments say that it is value for money.

To reduce costs take your own tent.

The Tasmanian government hope the track will attract 6000 visitors a year.