Riley Green will bring his show to the Maine Savings Amphitheater next, returning to Bangor on August 15th. Each year, Waterfront Concerts delivers an amazing lineup for the summer concert season at the Maine Savings Amphitheater , drawing fans from all over to Bangor’s waterfront. 12 Things You Need To Know Before Going To A Show At The Maine Savings Amphitheater Here are some things you want to keep in mind before attending a show at the Maine Savings Amphitheater in Bangor.