Vacationers will be able to fly the Necker Nymph while chartering the Necker Belle, Branson's 105-foot yacht, or the submarine can be launched from shore. Necker Belle is rented out to guests for $88,000 a week, bringing the full Necker Island experience to more than $400,000 per week. Riders must follow SCUBA procedures and be trained or accompanied by a certified pilot before entering the underwater plane. SCUBA tanks are mounted in the submarine and passengers must wear masks while underwater, said Hawkes. The Necker Nymph claims "near-zero" environmental impact because its "positive buoyancy prevents the sub from landing on a reef, and its low light and noise emissions ensure the fragile ocean ecosystems remain undisturbed," Virgin said.