The summer only family pass is available to immediate family members residing in the same household address. Immediate family members are further defined in the City of Scottsdale Parks and Recreation policy. All family pass members must be added to the pass at the time of purchase. No additional family members may be added after the time of purchase. MMR Aquatic Center family pass is good at all four aquatic centers. MMR has a different price due to the significantly greater number of amenities.