‘ISA’ water sports rentals are open from 9:00 am to 5:00 pm. The word ‘isa’ means ‘rainbow’ in Chamorro and at their Marine Center location you will find a rainbow of variety in all beach items treasures, such as: masks, snorkels, booties and fins, or canoes and peddle boats. Or you may select from specially priced packages for all day fun in the sun (great for families!) while exploring the Tumon Bay preserve. Jet-ski and banana boat tours are also available.