L.L.
I got the Sun Stop'r Kwik Cabana. The fabric blocks 97% of sun's harmful UVA and UVB rays, and is SPF 50+.
It's great. Has it's own little carrying pouch. Once you get it up the first time it's easy as pie. They have different sizes too.
Oh for travelling - bring a bag with LOTS of different activities. Books, toys, games etc. Mix new stuff they have never seen with old to keep interest keen. The more the better (within reason), you never know when you may be delayed - take it from one who knows.
Good Luck & Have a great trip!