The Charles P. Minch is a shallow wreck located in Big Tub Harbour, Fathom Five National Marine Park. Resting in 1 to 3 metres of water, this site is suitable for beginner divers. The wreck structure is accessible by boat, situated 1500 metres from shore. Divers can expect visibility between 10 and 30 metres with no significant current. Water temperatures fluctuate between 1 and 19 degrees Celsius throughout the year, necessitating appropriate thermal protection. Divers should exercise caution regarding sharp edges on the wreck and potential entanglement hazards. Air fills and boat charters are available locally to facilitate access to this site.

The Philo Scoville is a freshwater wreck located in Big Tub Harbour, Lake Huron. The site features a wreck structure resting at depths between 7 and 30 metres, with an average depth of 15 metres. Divers can access the site via shore or boat. Conditions include mild currents and visibility ranging from 5 to 15 metres. Water temperatures fluctuate significantly by season and depth, often reaching 4°C at depth year-round. Due to the wreck's structure, divers should maintain buoyancy control to avoid entanglement hazards. Surface boat traffic requires constant awareness during the dive.

The W. L. Wetmore is a shallow wreck located in Big Tub Harbour, Canada. Resting at depths between 5 and 8 metres, this site is suitable for beginner divers. Access is by boat only, and divers should be aware of entanglement hazards within the structure. Visibility typically ranges from 5 to 15 metres, with mild currents. Water temperatures fluctuate significantly throughout the year, ranging from 1 to 19 degrees Celsius. Species recorded around this area include round goby, snail, American crayfish, lake trout, small mouth bass, common carp, and pike. Divers should monitor depth gauges closely due to nearby drop-offs reaching 40 metres.

The W.L. Wetmore is a shipwreck located in Big Tub Harbour within Fathom Five National Marine Park. This freshwater wreck, which sank in 1901, rests at depths ranging from 7 to 30 metres, with an average depth of 15 metres. The site is accessible by both boat and shore entry. Conditions vary, with visibility typically between 5 and 15 metres and mild currents. Water temperatures fluctuate significantly throughout the year, ranging from 1 to 19 degrees Celsius. The wreck is situated near the King, another vessel in the harbour, and is suitable for intermediate divers and snorkellers.

The James C. King is a freshwater wreck dive located in Big Tub Harbour, Fathom Five National Marine Park. The site spans depths from 8 to 29 metres, with an average depth of 18 metres. Access is by boat only, and the site is suited for advanced divers due to strong currents, cold water temperatures ranging from 1 to 19 degrees Celsius, and variable visibility. Divers should be prepared for cold conditions at depth, where a drysuit is recommended. Species recorded around this area include round goby, snails, American crayfish, lake trout, small mouth bass, common carp, and pike.

The Tugs in Big Tub Harbour consist of four small steam tugs resting in shallow freshwater. This site is accessible via a shore-side wooden deck, making it suitable for beginners. The Alice G is the most intact vessel, featuring a visible engine and boiler. Depths range from 3 to 12 metres, with an average of 6 metres. Visibility typically spans 12 to 24 metres. Conditions include mild currents and water temperatures that vary from 1 to 19C. Divers and snorkellers should remain aware of boat traffic in the harbour. Facilities at the site include parking, toilets, and changing rooms.

Big Tub Lighthouse Point, located in Big Tub Harbour, offers a diverse freshwater dive experience combining wall, reef, and wreck topography. Divers can explore depths ranging from 11 to 23 metres. The site is accessible via both shore and boat, though shore entries require navigating surf and shore breaks. Conditions include mild currents and visibility between 10 and 30 metres, though sharp thermoclines and cold water intrusions can cause rapid temperature drops. Due to frequent charter boat traffic in the harbour, the use of a surface marker buoy is essential. Facilities including parking and toilets are available on site to assist with gear preparation.

The Anchor is a freshwater wreck and reef site located in Big Tub Harbour, Lake Huron. Divers can explore the structure at depths between 21 and 22 metres. The site offers visibility ranging from 10 to 30 metres and features a mild current, making it suitable for intermediate divers. Shore entry provides straightforward access, with parking and toilets available on site. Due to the nature of the wreck, there is a risk of entanglement; divers should maintain awareness of their positioning. Water temperatures fluctuate significantly throughout the year, ranging from 1 to 19 degrees Celsius, and thermoclines may be present.