The morning Surf Lessons actually start three hours prior to Park opening, and you have to be there 15 minutes ahead. Next week we move opening to 9:00 (from 10:00) and so people for surf lessons will have to be there at 5:45.
There are also evening Surf Parties most days. They will preform a group. You have to provide your own board. The price depends on both the number of people in the group and the number of waves ordered. The party cost could run from about $1,000 to about $2,500 in total. If tehre are only five people it could get very expensive, if there are 20 (which I think is maximum) it would be much lower per person.
For both call 407-WDW-SURF for more information and reservations.