Has a lot of appeal for those that are interested in astronomy and science.It was built and is maintained by my alma mater (CalTech). More

A bit of a drive to get there. Worth it if you want to experience a real working observatory. Great for kids interested in science. More

Nice drive and the observatory is awesome. It has a film of the history of the observatory that is very interesting. More

Went up to tour the observatory with a fifth grade class and enjoyed every minute of it. Seeing one of the leading observatories in the country and learning about the stars was a great way to spend an afternoon. More

The ride up to the mountain had lots of twists and turns. Unfortunately motorcyclists go up at accelerated speeds, and there are usually 1 or 2 accidents a week. At the top of the observatory is a small museum. There is a guided tour that is very well done and there is ample time for questions. One must purchase tour... More

Go! First of all, the drive through the mountains is wonderful and the building itself is a work of art-deco beauty. We went on a Friday morning and it was quiet and mysterious, in a way. It's amazing to see such a machine and to realize that it was built in the 1930s and is still so important to the... More

This was our first stop during our vacation trip to San Diego and was well worth it. We were going to be in the area for one Saturday. Check the observatory website for the Saturdays when docents offer tours of the telescope. You get to go inside with docents who are passionate about the observatory. Plan to get there early.... More