A-1 Scuba Colorado's largest scuba facility, located off of West Belleview Avenue and South Windemere Street. New to diving and want to get started? We we have an amazing staff that can teach you the basics all the way to expert level training.Here at A-1 Scuba we offer scuba certification, equipment sales, swim lessons, in house pool, unmatched service and a repair department that utilizes state-of-the-art testing equipment and the latest in specialty tools to keep your equipment functioning flawlessly. A-1 Scuba also has a full service in house travel department to handle all of you dive and non-dive travel arrangements. A1 Scuba Travel Agency Hours Monday-Friday 10AM-6PM. We are a one stop shop for everything involving scuba diving!