Here at Thames Party Boats, we offer many types of events when it comes to birthdays. Our most popular is the Yacht birthday party, this includes up to 210 guests on our viscount boat. A Yacht birthday 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 birthday party you will be able to use all our facilities.