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.

The Pot Ash Point Canal Boat is a pre-1862 wreck located in Lake Champlain. Resting at a depth of 11 metres, the site features a remarkably intact bow and a visible cargo of quarried stone. Divers should be prepared for sharp thermoclines and significant temperature drops at depth. Visibility ranges from 3 to 11 metres, and currents are generally mild. Access to this site requires a boat, as it lies approximately 1609 metres from the shore. The site is suitable for beginners, though divers must remain aware of hazards including boat traffic, entanglement risks, and low visibility. The habitat supports various temperate freshwater fish and invertebrates.

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.

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.

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.

Belden Falls Lower Falls consists of a series of cascades and deep pools located below the Belden Falls Dam on Otter Creek. The site features a rocky substrate and moderate water flow, which forms pockets suitable for snorkeling. Access is provided via the shore. Due to the presence of deep water and strong currents, this location is recommended for intermediate snorkelers. Visitors should exercise caution regarding the variable conditions and the strength of the flow. Parking facilities are available on-site, and guided tours are offered for those navigating 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.