How far in advance do SEA LIFE birthday parties need to be booked? Our birthday parties are very popular and the birthday rooms get reserved quickly. To avoid disappointment we recommend you reserve the special date you want as soon as possible but at least 2 weeks in advance. To book, please call 760-438-5346. Was this article helpful? Related articles What does the All Day dining package include? Will there be a host for my SEA LIFE party?