Mobile Big Pond is located approximately 30 minutes south of St. John's, accessible by driving through Bay Bulls, Witless Bay, and then Mobile. From Mobile, look for a convenience store on the left-hand side; 1.3 km past it, a dirt road on the right leads to the pond, roughly 10 km in. The road is passable by vehicle all the way to the water's edge, making access relatively straightforward. The pond's coordinates are approximately 47.272524, -53.026781, placing it in Division No. 1, Newfoundland and Labrador.

The pond has been dammed to power a small hydroelectric station, which means water levels fluctuate. In summer and autumn, levels tend to be lower, exposing significant stretches of shoreline. Paddlers should be aware of this variability when planning a trip, as it can affect launch conditions and the overall character of the water's edge.

A documented paddling route runs from Mobile Big Pond up the Mobile River, heading west and slightly north, with a destination at Madison's Rock and a return trip along the same course. This route has been written up by Peter Armitage and is referenced in the Kayak Newfoundland and Labrador library. The pond sits within a landscape that, like much of the Avalon Peninsula, keeps the ocean relatively close at hand.

The pond supports fishing activity, with catches recorded in the area. Nearby water bodies include Finnies Pond (approximately 5.3 miles away) and Big Triangle Pond (approximately 8.7 miles away). The surrounding terrain involves a mix of beach, river crossings, and rocky outcroppings, giving the area a varied and somewhat rugged character. The shoreline includes large rocks and open beach sections, particularly when water levels are low.