Here at Thames Party Boats, we offer many types of events when it comes to birthdays. Our most popular is a Yacht boat party, this includes up to 210 guests on our viscount boat. A Yacht boat party can be as big or small as you want. Our boat can be used as a seated event or as a dance floor, or a mixture of both. We also have 2 bars on board so when you book a Yacht boat party you will be able to use all our facilities.