Travel Answers

I'm considering going on to Reunion Island from Mauritius, for 4 nights in early June, and would appreciate your kind advice on the following:-
1) Local currency used? Foreign currency accepted?
2) Accommodation you would recommend - any star but safe, friendly and comfortable for a solo mature female traveler.
3) Transfer from airport to accommodation - how do I get there?
4) Things you would recommend I do? Moderate activity.
5) Can I get by with a minimum of basic French and will locals speak to me in English if I ask (in French) if they can speak English ?
6) Any local VTer I could meet?
7) Any other advice you deem useful to a solo female traveler.

Thank you! :-)