The last time we were in TB, I saw a route taxi with Black River/Treasure Beach on the side. I assume this means it's route is black river to TB.

The drive from BR to TB is about 45 minutes to an hour. Depending on conditions and how quickly your driver drives. One driver we had was downright scary and we had to tell him to slow down.

The last number I had for Gairy Brooks was: 876-452-4490 but that was 2 years ago. You can try it and see if it still works. And yes, Gairy is based out of Treasure Beach. We've used him a couple times. Great, safe, reliable driver.