Olson is an artificial reef site located in Prague, Czech Republic. This freshwater location offers shore entry and reaches depths of up to 23 metres, with an average depth of 17 metres. Visibility at the site ranges from 2 to 8 metres, providing a practical environment for divers to practice navigation and build skills in variable conditions. The current is variable, so it is recommended to assess the water before entering. The site is suitable for beginners with an open water certification and remains accessible for diving throughout the year. Please check locally for current information regarding facilities before travelling.

Velká Amerika is a flooded limestone quarry featuring sheer vertical walls that descend to approximately 18 metres. This freshwater site offers a sheltered environment with mild currents, though visibility is variable and can shift due to weather or sediment disturbance. The quarry presents an overhead environment, requiring advanced buoyancy control and careful navigation. Divers should utilise primary and backup torches to manage lighting conditions along the rock faces and submerged ledges. Shore entry is straightforward, and parking is available on site. Due to the depth and overhead nature of the quarry, this site is suited for advanced divers who can manage cold water conditions and maintain precise situational awareness.

Žernovka is a flooded quarry in Prague, Czech Republic, featuring an artificial reef structure. This freshwater site offers shore-entry diving with depths reaching 14 metres. Divers should expect mild currents and variable visibility. The underwater topography consists of rock formations that serve as both navigational landmarks and potential hazards. Due to consistently cold water temperatures, a drysuit or thick wetsuit is recommended. This site is suited for intermediate divers. As the area remains active, divers must remain alert for boat traffic and be mindful of potential entanglement risks. It is advisable to contact local dive clubs for current conditions before planning a visit.

Náplavka is a freshwater dive site located within the Slapy Reservoir in the Czech Republic. The site features a mix of reef, wreck, and artificial reef structures. Divers can explore depths ranging from 5 to 45 metres, with an average depth of 25 metres. Entry is via the shore, and conditions include mild currents and visibility fluctuating between 1 and 10 metres. Due to the variable visibility and potential for entanglement, this site is suited for intermediate divers. Water temperatures are seasonal, ranging from 0 to 4°C in winter to 16 to 24°C in summer. Divers should remain aware of boat traffic and cold water conditions during their 60-minute dives.

Hráz Slapy in the Slapy Reservoir offers a technically demanding freshwater dive focused on submerged wrecks and artificial reef structures. The site reaches depths between 25 and 43 metres, with an average depth of 35 metres. Divers should expect mild currents and visibility ranging from 2 to 8 metres. Due to the depth and potential for low visibility, an underwater torch is essential. Shore entry is available, though caution is required in the shallows to avoid sharp rocks. The site is suited for advanced divers and provides full facilities, including air fills, changing rooms, and showers, to support multi-dive sessions.

Zátoka Babor is a freshwater dive site in the Slapy Reservoir, Bohemia, featuring an artificial reef structure. The site offers depths ranging from 5 to 45 metres, suitable for beginners at shallower levels while providing challenges for experienced divers at depth. Visibility varies between 1 and 10 metres, often requiring a torch due to low-light conditions. The current is mild. Divers can expect to encounter typical temperate freshwater fish and invertebrates associated with this habitat. Shore and boat entries are both available. On-site facilities include a dive shop and guided tours, and night diving is permitted.

Nova Rabyne is a flooded quarry in the Slapy Reservoir that serves as an artificial reef and wreck site. Divers can explore various submerged structures at depths ranging from 12 to 25 metres, with shallower areas suitable for buoyancy practice. The site features no current, providing a relaxed environment for beginners. Visibility is variable, typically ranging between 1 and 11 metres. The location is accessible via shore entry and supports night diving. On-site facilities include parking, showers, a café, and a dive shop for equipment hire and air fills. Divers should remain cautious of sharp edges on wrecks and potential entanglement risks on submerged structures.

Vraky pod vyhlídkou is a freshwater dive site located in the Slapy Reservoir near Ždáň village. The site is characterised by submerged car wrecks situated beneath a viewpoint. Divers can explore depths ranging from 8 to 45 metres, with an average depth of 15 metres. Conditions vary, with visibility typically between 1 and 10 metres depending on weather and water temperature. The site is suitable for intermediate divers and offers both shore and boat entry options. Facilities available at the location include parking, boat charter services, and a dive shop. The water temperature fluctuates between 4°C in winter and 24°C in summer. Low visibility is a noted hazard at this site.