Isabella Gardner Museum coupons help guests save on admission prices. Not only are discounts extended to seniors and students, but military personnel and children under the age of 18 are admitted free. A fun way for visitors to save a quick $2 is to wear some of their Red Sox gear, as Isabella Gardner was a big fan. The museum participates in the Go Boston Card, another great way to save. The card is available for a discounted fee, and includes unlimited access to the Isabella Gardner Museum and more than 48 area attractions for a select number of days. Another solid way to save is by becoming a museum member. Not only do members received unlimited museum access, but they also receive a 10 percent discount at the museum store and cafe.