There are some good suggestions here so far...
San Diego was lovely, many different things to do. Animal park, world class zoo,
Lego land, DL and California Adventure a couple hours drive away, as is Vegas. The. You also have terrific beaches for lounging, relaxing, or surfing. Sightseeing includes la jolla (oh those lazy seals!), pacific beach, Coronado (first hotel to have electricity!), the Midway, Gas Lamp district, old town, Balboa Park.
We really like going to Door County in Wisconsin. It's the opposite of a disney vacation. We get a cabin on a lake that is surrounded in 3 sides by thin strips of woods, then Lake Michigan. It is cooler (wore a sweatshirt at night over July 4th week!), quiet. During the day, we tool around the shops, art galleries, fudge shops. We can hang out at the condo, read out in the pier, take one of the 3 boats that came with pit cabin out in the lake to look around, swim, or go fishing. For dinner we grill, go to a fish boil or a local mom and pop restaurant (because that's all there is up there). We spend a lot of time together playing games (pictionary, monopoly, charades). As a teen, my parents gave me and my sister a lot of freedom in the small towns to explore and just be on our own, which was exactly what we craved- independence. Last we went was 2010? And there was NO cell phone service. We had to go to a high hill near the grocery to use our phones and it was glorious!!! What a wonderful and refreshing break from our everyday lives it was!!!
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