Regularly scheduled ferry services from Great Harbor are available to: Tortola – 20-30 minute voyage. St. Thomas – 45-60 minute voyage. St. John – 30-40 minute voyage. Check out the local ferry schedule from Great Harbor to other islands. It’s posted in front of the Customs House. Check http://www.bviwelcome.com for ferry times. You will want to call the ferry service to confirm the ferry times.