One of the things I enjoy in Del Mar is time spent at one of the two parks by the ocean. The view is breathtaking and it's a great place to picnic, or to enjoy the view from the edge of the cliff.
Sea Grove Park is older, as a destination, than Powerhouse Community Center Park. Although the land has always been there and it has been well used, Powerhouse Park was created when the Community Center developed. At this park you'll see bigger groups gathered and more children. The beach can be accessed from this park and there are restrooms and public showers located at the back of the Community Center.
Sea Grove Park seems to be less crowded and more peaceful in a general sense, so it is up to you which park to choose. There are things in common with Sea Grove park and the one in La Jolla near the downtown "village" area. They both can be seen from the main downtown street with a view out to the ocean. They both are perched on a cliff and they both offer a wonderful opportunity to relax and enjoy one aspect of California living.
Take the time to stop, at least for a few minutes to enjoy this simple thing in life.
Go to the beach below Sea Grove Park (at the end of 15th street.) Nice waves, tide pool a little further south. Showers are very convenient for washing off the sand.
Also, there is a very nice shopping area right on 15th and El Camino Del Mar (101). Lots of excellent shops and things to look at there.
The only downer is the commuter train. The horn is way too loud and it goes right through the best part of town--at all hours of the night waking everyone up. They should move the tracks further east or underground! Boo to the trains!
Fondest memory: I used to live there so I have many good memories. I guess the greatest feeling there is peace. It's like the Hawaii of California to me. It's a very rich and well landscaped area. The shops and other accomodations, as well as the architecture are upper class which reflects in the cost of living there.