We have been to DL a few times. We never do hoppers at WDW but we always do hoppers at DL, it really just makes sense there.
There is soooo much to see and do in Southern California.
@LittleFlounder has a great suggestion to hit the beaches but just know if you are going in May, the ocean water might still be a bit cold. Laguna Beach and Huntington are amazing, even just to hang around and shop a little.
A HUGE hotel tip I have is to look at staying on South Harbour within a block of the Toy Story parking lot.
Basically you can walk into the Toy Story Parking lot and take the shuttle right to the entrance plaza. My kids did that a couple of years ago when they went on their first trip together.
It saved a bunch of $$$ and was fast and easy. I was a little worried that it was kind of bending the rules but it turns out it is a very usual thing.
Here is the link to the DisBoards thread that I got a ton of advice for DL hotel stays and ultimately found out about staying near the TS lot.
https://www.disboards.com/threads/u...distance-or-good-shuttle-times.3740937/page-2This is the hotel they ended up staying at.
https://www.hyatt.com/en-US/hotel/california/hyatt-place-at-anaheim-resort-convention-center/anaza