Protect your self from the sun (use a sunblock 15 to 40) or in the afternon hide under the umblela or in a shadow, take it serious, the sun is very strong and without noticing it you can be burned and spent bad time.
Protejase contra el sol (utilice un sunblock 15 a 40) o en la piel, al medio dia ponganse debajo se una sonbrilla o en una sombra, Tomelo enserio fuerte y sin notarlo usted puede ser quemado y mal tiempo pasado.
It is important to take cash , since you do not find many places that accept credit cards
NO BANK or ATM (even in some restaurant and posadas they do not accet credit cards)
The peneros, the food almost everything have to be paid in chash
There are some shops that change US$, but the rate is not good