My son-in-law had his first surf lesson in Waikiki in December and loved it so much! The problem was that we had packed the first few days of our stay with so many activities that he was only able to surf the last few days--and the surf those days was less than optimal (no waves). We're thinking about visiting again in May 2012 and wondering what the waves are like in Waikiki vs. North Shore. We're also considering Maui, but I read some articles that suggest that surfing is more dangerous there. Feedback?