The pool was advertised as the largest swimming pool in Wisconsin Dells, the "waterpark capital of the world". The cost of this addition was $4 million. In 2019, Mount Olympus representatives announced at the IAAPA Expo their purchase of a new Slidewheel waterslide for the 2021 season. Named Hercules, the slide would consist of a perpetually rotating wheel in which rafts would be dispatched into every 30 seconds, and move through the knot of slide tunnels akin to a massive hamster wheel. However, the impact of the COVID-19 pandemic in 2020 halted plans to install the slide in time for the 2021 season. The renamed Medusa's Slidewheel was formally announced on August 6, 2021, and is currently on track to open within the Indoor Waterpark area for the 2022 season. The slidewheel will be accompanied by a brand-new indoor waterpark expansion, with a general pool named Serpent's Pool. Acquisitions of other properties In 2010 and 2011, the park purchased several smaller nearby independent motels and hotels and renamed them, creating seven new lodging areas and painting the buildings blue and white to fit the Greek theme. These acquisitions included the Star Motel and Luna Inn & Suites (which became Poseidon's Village), the Riverwalk Hotel (which became Santorini Village), American World Resort & Campground (which became Zeus's Village), and the Four Seasons Motel (which became Poseidon's Village). Mt. Olympus also purchased the Raintree Resort and Conference Center, the first hotel built by Todd Nelson, who currently owns the Kalahari Resort. The Copa Cabana Resort Hotel & Suite was completely renovated after it was purchased by Mt. Olympus in 2011, and it reopened as the core of "Mt. Olympus Village" the following spring. All of the resort's acquired motels were rebranded once again to Mt. Olympus Village in 2013. This change coincided with the purchases of the Concord Inn and the Monaco Motel. The addition of these properties gave the resort a total of over 1,300 rooms. Recent acquisitions include the Diamond Hotel in 2015 and the Ambers Resort and Conference Center in 2016. Incidents On March 6, 2014, a lap bar malfunction caused by inadequate maintenance occurred on the Opa roller coaster in the indoor theme park, causing a 63-year-old man from Fremont, Wisconsin, to fall 17 feet from the ride, sustaining serious injuries that left him in a coma for three weeks. The ride was permanently closed following the incident