A few years ago, we heard a rumour about being picked as the Ski Captain of Blizzard Beach, and followed what we read on this site. My Oldest (probably 11 at that time) got selected, and its still one of his fave Disney memories.
You need to be one of the first families to arrive, I believe, and have a child/teen of appropriate age. About 1/2 hour before Blizzard Beach opened, a CM came down, talked to my son, and asked if he like Summit Plummet. When he said yes, she whisked the whole family in through the gates. We were posed by a Photopass person at various sites, given use of the beach towels, and given a shelter (its marked Ski Captain) but this was before private cabanas. She gave us two drink mugs, then took my hubby, and both boys up to the top of Summit Plummet. They then opened the gates of the park and allowed the crowd to move closer, not yet fully opening the park. The crowd was directed to pay attention to Summit Plummet, and the park was declared open only when my son reached the bottom of the ride.
It was a memorable experience for our family, well documented by photopass, as the photographer went with them, even taking pix on the ski lift, and at the ride. Its this type of experience that makes Disney what it is.
On a side note, a bus driver who saw us waiting (at like 6am) for the Blizzard Beach bus from the Beach Club bus stop actually took pity on us and dropped us off there when he wasn't scheduled to stop there. Disney needs to do these type of "magical" things.
We've also had a number of magical encounters when they did the Year of a Million Dreams. How much fun was it to wait for a magical chance encounter with the Dream Team?