We are going to Bahia Principe Akumal for 7 days and I had a few questions that I can't seem to find direct answers to....

1. Are all the gift shops in walking distance?
2. What is the best way to get from the Airport in Cancun to the Resort and the cost?
3. Some people say you don't need to tip to get a good room and others say to tip if you want good service and room...
4. What currency should you bring with you...USD or PESO?

I hope someone can help me with these questions. I am a planner and all these tips would sure help.