First time to Cancun...considering a trip next March. We are wanting an all-inclusive resort either in Cancun or Playa Del Carmen. We are considering the CanCun Palace. We definitely want a nice beach with crystal blue water that is great for swimming. In March...Are the beaches crowded with Spring Break college crowds? What is the water temp? Is it a rainy season? Palace resorts....is there a free shuttle between the resorts? Any info is appreciated!