We (family of 4, kids 11 & 14) are traveling to Costa Rica during the 3rd & 4th week in August. Travel dates are limited by kids' camp and school schedules. We want to do many things, one of which is learn to surf. Just spoke with an Amex travel specialist who says Mal Pais beaches were too rough - waves too big and undertow too strong for learning to surf. Better to learn at Nosara or Tamarindo. Posts I've read on Trip Advisor seem to say that Mal Pais beaches are good for learning to surf. So was this "specialist" just there at a bad time? Feeling confused - please advise.