hannosmom- we just returned from the 3/15 7-day magic and did this wonderful excursion with my 7 and 10 year old dds. We could not do the "swim" because my youngest was not old enough. The encounter was just right. There is a metal walkway submerged under water upon which we stood as the dolphin- named "amaya"- came up to us. Under the direction of her trainer, we stroked her many times and held her chin for a few kisses-- they took a video and photos as we did this, which were avilable for purchase afterwards. I believe the encounter has a web-site and you could probably contact them in advance to discuss particulars for the handling of a wheel-chair. This was a great experience.