Note that there are different fees for recreational vs reserved pool. (dog-swim.com)
As well, Diablo Canyon's on - site desalination plant, which provides fresh water to cool the reactors themselves, has two reserve pools of 2.5 million gallons each, which are above the reactors and could be tapped if the plant goes down. (scientificamerican.com)
• Exclusive reserved pool area with sun loungers and drinks service • 24 hour room service • Priority check in / out • Complimentary bottle of water and fruit on arrival • Free late check out (subject to availability) • Currency exchange (cyplon.co.uk)