We decided to keep the actual exchanging of our vows private! No major reason other than that we just didn't really want a public ceremony.
Of course not! You're more than welcome to make a weekend trip out of it and stay overnight if you would like to but there is zero obligation. The ferry schedule can be tricky so it might end up being easiest to plan to stay on the island the night of the wedding, but certainly not a must. We are honored to have you however long you can stay!