Chimney Point State Historic Site provides a shallow, rocky shore entry located at the foot of the Lake Champlain Bridge. Divers and snorkellers can explore the area near the old ferry landings and bridge pilings, where historical debris is found. The site is suitable for beginners, with depths ranging from 1 to 5 metres and an average depth of 3 metres. Conditions include mild currents and visibility between 3 and 12 metres. Divers should be aware of sharp thermoclines, even during summer months, as well as potential hazards including boat traffic, cold water, entanglement, and low visibility. Facilities at the site include parking and toilets.

D.A.R. State Park Shoreline offers a freshwater snorkeling experience along the shores of Lake Champlain. The site features a shoreline composed of shale and limestone shelves, which create submerged rock ledges. These geological formations provide habitat for local fish and macro-invertebrates. Access is via the shore, making it suitable for beginners. Conditions at this site can vary, as the water may become silty following rainfall. Facilities available at the park include parking, toilets, showers, changing rooms, and a rinse station. Divers and snorkellers should be prepared for cold water temperatures typical of this freshwater environment.

Ship Island, also known as Fossil Flats, is a shallow freshwater site located in Lake Champlain near Button Bay. This shore-entry location features shallow flats characterised by button concretions and diverse macroinvertebrates. With depths ranging from 0 to 2 metres and an average depth of 1 metre, it is well-suited for beginners. The habitat supports various temperate freshwater fish and invertebrates typical of the region. Snorkellers should remain aware of mild currents and local boat traffic. On-site facilities include parking, toilets, showers, changing rooms, and a rinse station to support visitors.

Button Island in Lake Champlain offers a unique freshwater dive experience featuring historic breakwaters and foundations from a 19th-century summer home. Located 200 metres from shore, the site provides varied structure for exploration. Divers and snorkellers can expect visibility ranging from 3 to 12 metres. The site is suitable for intermediate divers, with depths starting at 2 metres. Entry is possible from both shore and boat. Be aware of potential hazards including boat traffic, cold water, entanglement risks, and significant thermoclines. Facilities at the nearby park include parking, toilets, showers, and changing rooms.

Dog Team Tavern Hole is a freshwater snorkeling site located on a tributary of the New Haven River. The river forms a sharp bend at this location, resulting in a deep pool characterised by a sandy bottom. Snorkellers can access the water directly from the shore. Conditions are generally mild, though the water is refreshingly cold and can feature strong currents. The site is suitable for beginners, though users should remain aware of the deep water and potential for cold-water exposure. The habitat supports various temperate freshwater fish and invertebrates typical of the region. Parking is available for visitors at the site.

Button Point is a peninsula on Lake Champlain featuring a rocky shore entry. The site is characterised by limestone bedrock containing 450-million-year-old fossils, which snorkelers can observe along the underwater ledges. Depths at this location start at one metre and vary as the terrain drops off. Due to the rocky entry and variable conditions, this site is best suited for intermediate snorkelers. Facilities available at the site include parking, toilets, and showers, with guided tours also offered for those interested in exploring the area.

Fanny's Beach is a rugged, shore-entry snorkeling site located on the south side of Basin Harbor in Lake Champlain. The lakebed consists of a mix of silt and stone. Snorkellers should expect cold water temperatures, with thermoclines present at depth. Visibility at this site typically ranges from 3 to 9 metres, and currents are generally mild. Due to the cold water and variable visibility, this site is best suited for beginners seeking a quiet experience. Facilities available at the site include parking, toilets, showers, and a cafe.

Champlain II is a shipwreck site in Lake Champlain that serves as an artificial reef. Resting at depths between 5 and 11 metres, the wreck is accessible to beginner divers, though it requires boat entry. Divers should be prepared for mild currents and variable visibility ranging from 3 to 12 metres. The site features an overhead environment within the hull, presenting risks of entanglement and sharp surfaces. Sharp thermoclines are common, and water temperatures fluctuate from the 40s°F to a summer peak of 72°F. Drysuits are strongly recommended for this freshwater dive. Guided tours are available and advised for those navigating the wreck structure.