Treasure Island is nestled at the east end of Blue Water Highway just before going over the San Luis Pass Bridged to Galveston or it can be accessed from Galveston going west on the same bridge!! There is also a canal side to Treasure Island with a boat launch and a community center. Note the dimensions for this lot. The corner lot is much larger than the other ones. waiting for paperwork to come back from Brazoria County with a street number assignment.