Korven Louhos is a flooded quarry in Finland that serves as an artificial reef. Divers access the site from the shore, with depths ranging from 5 to 19 metres. The site features mild currents and a consistent visibility of 7 metres, making it suitable for beginner divers. Water temperatures fluctuate significantly throughout the year, ranging from 1 to 18 degrees Celsius, necessitating appropriate thermal protection such as a drysuit or thick wetsuit. Guided tours are available to assist with navigating the quarry layout. The site is also open for night diving, which offers a distinct perspective of the artificial structures.

Hilloisten Louhos is a freshwater quarry in Finland offering shore-based diving. The site features depths ranging from 5 to 19 metres, with an average depth of 12 metres. Divers can expect visibility between 20 and 30 metres. Water temperatures fluctuate significantly throughout the year, peaking at 18°C in August and dropping to 1°C in February. The site is suitable for beginners and supports night diving, with typical dive times around 50 minutes. On-site facilities include parking, toilets, showers, changing rooms, a rinse station, air fills, and guided tours. Due to the nature of the environment, divers should be prepared for cold water and deep conditions.

Helsinginranta is a shore-entry reef dive located in the Baltic waters off Finland. The site features a reef structure that descends to depths between 15 and 30 metres, with an average depth of 23 metres. Divers encounter mild currents and visibility typically ranging from 5 to 10 metres. Due to the significant depth and cold water temperatures, which fluctuate between 1C and 18C throughout the year, proper exposure protection and careful gas management are essential. The site is suitable for beginners, though divers must remain aware of boat traffic and maintain neutral buoyancy to avoid contact with the reef structure.

Uhlu Quarry is a freshwater site featuring artificial reef structures and submerged walls. Divers and snorkellers can access the water via a shore entry. The site reaches depths between 5 and 30 metres, allowing for varied profiles. Visibility typically ranges from 5 to 15 metres, though conditions can fluctuate. The environment supports a variety of temperate freshwater fish and invertebrates typical of the region. Due to the presence of submerged structures, entanglement hazards exist, and divers should remain alert for boat traffic near the wharf. This site is suited for intermediate divers who possess solid buoyancy control to navigate the quarry geometry safely.