Your favourite thing to do in San Diego

[Arne]

Like some of you know, I'll be studying at San Diego State University as an exchange student during the next 5 monts and my flight to San Diego leaves on Wednesday.

When I arrive in San Diego, I will have one or two weeks without having to study. So I thought why not get advise as to what to do there!?

So what are your favourite things to do in San Diego? (only rule: don't repeat what someone said before... )

Thanks a lot in advance!