May 1-18
For Birch Aquarium members and members of participating organizations.
Membership has its privileges! The Big Exchange gives members of participating organizations reciprocal admission at 30 museums, historic sites, gardens, and more throughout San Diego County.
Simply head to your favorite participating museum. Once you arrive, tell your guest services representative that you are there for "the Big Exchange," then show your membership card from any museum on the list for complimentary reciprocal admission.
Free admission includes people covered by your membership, up to a maximum of 4.