

Best for beginner divers, shore entry, mild current.
Hillman Marsh, located south of Wheatley on the Detroit River, offers a shore-entry snorkelling experience over a mix of sand and pebbles. The site is suitable for beginners, though conditions vary with visibility ranging from 1 to 15 metres and currents typically remaining mild. Divers and snorkellers should be aware of potential hazards including surf, rip currents, entanglement risks, and low visibility. Water temperatures fluctuate significantly throughout the year, ranging from 1C in February to 24C in July and August, with thermoclines present in the broader Lake Erie area. On-site facilities include parking, toilets, showers, and changing rooms.
41.96450, -82.48420
The west cell of the conservation area is closed to all activities, including water-based activities, to contain and eradicate invasive Hydrilla.
Amenities are accessed from the main entrance at 1826 Mersea Rd 2, Leamington, ON.
Expected in this region. No sightings logged here yet.
Visibility
1-15m
Skill Level
Beginner
Entry
Shore
Water Temp
1-24°C
Current
Mild
Yes, the site is rated as suitable for beginner snorkellers.
Yes, this site is used for snorkelling with a rating of 3 out of 5.
Hillman Marsh is a shore entry site.
Water temperatures range from 1C in winter to 24C in mid-summer, with significant temperature differentials caused by thermoclines.
Snorkellers should watch for surf, rip currents, entanglement risks, and periods of low visibility.
A drysuit recommended is recommended for diving at Hillman Marsh in Wheatley. Water temperatures range from 1°C to 24°C.