While we may be freezing now the temperatures will rise and Texans everywhere will be eager to cool off in a matter of weeks. A brand new boat rental business on Belton Lake aims to help Central Texans have a good time on the popular lake. Island Pontoon Rentals – Belton Lake is already taking reservations for warmer times ahead this Spring and Summer. The company is new to Belton Lake, but not new to the boat rental industry. “We have been in business for 10 years on Lake Travis as Lake Travis Yacht Rentals and Island Pontoon Rentals – Lake Travis,” co-owner Gabi Krohn said in an email announcing the new venture to Central Texas Reporter.