So I am taking my 4 year old son to Dinseyland in July. We are doing two days and think that is plenty. So 3 nights about 6 miles away as well as 4 nights in Carlsbad on the water. For two days, should I eat the $120 and get the park hopper or just do 1 day at one park and one at the other. My concern is if he really likes one park doesn't like the other. Suggestions? Tips to maximize his fun?