According the fine print (see below), the program lasts only 10-15 minutes. I haven't done this, but that seems a bit short. It also does not include park admission, which is a separate charge.
Have you decided to rent a car to get to San Diego?
Reservation includes the Dolphin Encounter program on day and time of your reservation only. Park admission is not included with your program reservation but is required. Due to the special nature of this program, space is limited and early reservations are recommended. Overall program lasts between 10 to 15 minutes and is subject to change. Participants must be at least 48 inches tall (or accompanied by a paid adult participant). Participants under 18 will need a parent or guardian present. No loose jewelry, sunglasses or smoking is permitted during the interaction. Photographers will be available during the interaction with photos available for purchase afterwards for an additional fee. Dates, program, prices and event offerings are subject to change without notice. All events are subject to change and/or cancellation due to animal availability. Events are not cancelled due to inclement weather; programs will still be offered except in the event of lightning. Cancellation Policy: cancellations 48 hours before your reservation will result in a full refund; cancellations within 48 hours of your reservation will not be refunded. Cannot be combined with any other offers, promotions or discounts. Non-replaceable, non-transferable, not for resale and cannot be redeemed for cash. Void if altered and photocopies will not be accepted. Pass Member discount is available when booking through the Pass Member website.