Swimming at Tree River Mouth Beach is not generally advised due to the extremely cold Arctic waters and potential strong currents where the river meets the ocean. The water temperatures remain very low even in summer, posing a serious risk of hypothermia. There are no lifeguards or designated swimming areas. It's best to enjoy the scenic beauty from the shore and observe any wildlife from a safe distance.

The optimal time to visit Tree River Mouth Beach is during the short Arctic summer, typically from late June to August. This period offers the mildest temperatures, the longest daylight hours, and the best chances for open water access. Wildlife viewing opportunities are also generally higher during these months. Outside of this window, ice conditions and extreme cold make access and enjoyment very challenging.

Accessing Tree River Mouth Beach requires considerable planning due to its remote location near Kugluktuk, Nunavut. Visitors typically fly into Kugluktuk from southern Canada. From Kugluktuk, reaching the beach would likely involve arranging local transportation, such as a boat charter during the open water season or potentially an ATV/snowmobile trip depending on the time of year and local conditions. Guided expeditions are often the most practical and safest option.

There are no direct food or lodging facilities at Tree River Mouth Beach itself. Visitors would need to base themselves in Kugluktuk, the nearest community. Kugluktuk offers limited accommodations, such as a hotel or guesthouse, and basic amenities like a grocery store. It is essential to book any lodging and plan for all provisions well in advance, as options are scarce and demand can be high during the short summer season.

Tree River Mouth Beach is renowned for its wildlife viewing opportunities, particularly its significance as a spawning ground for Arctic Char. Visitors might observe various bird species, including migratory birds, and potentially land mammals such as caribou or muskox in the surrounding areas. Marine mammals like seals could also be spotted in the coastal waters. Always maintain a respectful distance and avoid disturbing the wildlife.