Details.
Participating public libraries in Massachusetts, New Hampshire, and Rhode Island offer coupons for their patrons. Each coupon admits up to four people at a discounted Aquarium admission price of $20 per person, valid only on the date printed on the coupon. Children age two and under are free. This offer cannot be combined with other offers or coupons and is not valid for movie or whale watch tickets. Coupons must be reserved through a participating library, and screenshots are not accepted.