Hi; The shuttle is $15 and it does stop running at 3pm I think. If you call the Hotel, they can give you a more up to date schedule. If you have to be at the Port by 2pm then there may be some things you can do, I would suggest walking over to the beach.; I would allow at least 30 minutes for the shuttle. The front desk people are very helpful at this Comfort Suites.
This hotel is just a short walk from the beach. I would say about a 5 minute walk. When in Galveston it is my opinion that most people would like to go to the beach. This hotel is close enough that walking to the beach and allowing you to have your car parked in the parking lot is an economical way to do it. Parking a car along the beach, next to the highway, is not an economical way to see the beach in Galveston. Other than the short walk the experience of walking on the beach is always great, so much to see.