Water Taxi from STT to Road Town runs between $360 and $400 round trip per person, planned in advance. This includes all taxes and fees, which are significant. It appears to me that the cost increases as you get closer to your travel date. There are about 6-8 providers, but all are within this price range.
It is important to compare to costs of door to door with Ferry/ land taxis.
I have found water taxi going in is much more value. The Ferry coming back is generally better than going into BVI (Customs in USVI more predictable). Also I have often not had a group (just 1-2 people traveling back with me) and thus water taxi not a good option.
I do think a community availability calendar would be great.
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