Listings >> Tours & Activities Black Jack Hole This reef, which reaches a depth of 120 feet, has a large quantity of.. Write a review Review This reef, which reaches a depth of 120 feet, has a large quantity of sponges and corals. Northeast Coast Trinidad & Tobago Trinidad & Tobago Get directions Rate and write a review Cancel replyYou must be logged in to post a comment. Is this your business?Claim it now.Make sure your information is up to date. Tours & Activities Mon-Thur: 12:00 – 23:00 Fri: 12:00 – 00:00 Sat: 9:00 – 00:00 Sun: 9:00 – 23:30