Good morning Lesley,
It is well worth putting this post in the Traveller tips section as people may just not have thought to start a thread like this yet but I'm sure you will get a response if you take the initiative 🙂
Insect repellent - Honestly, I don't go anywhere without it, its relatively inexpensive and always handy to have a bottle to hand nearby.
Money - Well, this is a difficult one for me! again previous customers will I'm sure, be able to offer some sound advice. If you are taking Debit and Credit cards also, then I personally would take around $200 in cash with the view to using cash machines whilst there should I need but please bare in mind having never done this tour I cannot guarantee this will be enough! Especially with all the fantastic shopping opportunities! Again, please re post this in the travellers tips section, it will be interesting to hear other travellers views,
Kindest,
Ben