Hi Bren
It's a yes to the trainers / walking shoes - if it's -6C at the volcano (and dusty I presume) I don't think I want to have my toes out! I'll also have them for the day at the zoo as there will be lots of walking involved.
I must admit to being slightly disappointed that the tickets haven't arrived yet - usually they come up to a week early but as of today they are officially late! Ah well, I shall have to continue stalking my postman for a bit longer!!!!
A couple of other things I thought about this weekend when doing my packing list - a tshirt to snorkel in for those having a go. I have previously had very bad sunburn whilst snorkelling and don't fancy that again. Also, if anyone is locking their suitcase, use a TSA approved one - these are a code type lock with a keyhole in the bottom which the US authorities hold a key for. They are quite easy to get at supermarkets etc.
Angie - glad to have you along, and nice to be able to learn another name beforehand.
Sally