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.

Järppilän louhos is a shore-entry quarry dive site located in Finland. Reaching depths of up to 15 metres, this site features mild currents and is suitable for beginners looking to gain experience in cold-water environments. Water temperatures range from 1C in February to 18C in August, necessitating appropriate thermal protection such as a drysuit for most of the year. Visibility is highly variable, so checking recent local reports is recommended before planning a dive. Divers should exercise caution regarding buoyancy control and be aware of the potential for changing conditions within this enclosed freshwater environment.

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.

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.