the ride afterwards, which he did wearing his full set of ice hockey protective equipment. "The Cannonball Loop was not fun", he recalled later. "It was more like a ride you ride to survive than to have fun." A rider also reportedly got stuck at the top of the loop due to insufficient water pressure, and a hatch had to be installed at the bottom of the slope to allow for future extractions. Those who rode the Cannonball Loop have said that more safety measures were taken than was otherwise common at the park. Riders were weighed, hosed down with cold water, instructed to remove jewelry, and then carefully instructed in how they had to position their bodies to complete the ride. The ride reopened a few more times over the years. In the summers of 1995 and 1996, it was opened for several days before further injuries forced its permanent shutdown. For the remainder of the park's existence, Cannonball Loop remained visible near the entrance of Waterworld. It was dismantled shortly after the park closed. In 2014, video footage that appeared to show riders going down the Cannonball Loop was unearthed and published online. In 2015, Action Park planned to debut another water slide, the "Sky Caliber" developed by Sky Turtle Technologies, which would encase riders inside a bullet-like capsule for a vertical drop and a loop, at and 6 Gs. Other notable water attractions The Tidal Wave Pool was opened at the beginning of Action Park's 1981 season. The first death occurred here in 1982; another visitor drowned in this common water-park attraction five years later. It was, however, the number of people the lifeguards saved from a similar fate that made this the only Waterworld attraction to gain its own nickname, "The Grave Pool". The pool was wide by long and could hold 500 to 1,000 people. Waves were generated for 20 minutes at a time with 10-minute breaks and could reach as much as in height. It was not always obvious that pool depth increased near the far end, and some patrons only remembered or realized that they could not swim when they were in over their heads and the waves were going full blast. Even those who could swim sometimes exhausted themselves, causing patrons to crowd the side ladders as the waves began, leading to many accidents. Twelve lifeguards were on duty at all times,