We will be going to Disneyland for 3 days and then we want to do 1 day at Safari Park before Disneyland. (We've been to the SD Zoo several times but never to the Safari Park). Are the "extra" items worth it? I understand that with admission I get this tram ride thing but I'll have a 4 year old(almost 5 year old) with me and with all the walking involved should we spring for another tram that costs extra? Maybe the cart safari? Many of the other options have an age requirement that is older than my 4yo would be able to do. Your thoughts are appreciated!