Vacation... Help!

I'm going on vacation to California for 2 weeks. Supposed to get my period about half way through and I was really hoping that the timing wouldn't work out that way.... But it did..... Any tips for dealing with it while on my vacation? Been looking forward to this for sooooo long and not looking forward to it as much now. My cramps can get pretty bad and I tend to have a heavy flow. Was planning on doing lots of swimming but no so sure now...  Any tips are much appreciated!!