B10 Camp is a backcountry campsite within Grundy Lake Provincial Park in Ontario. It stands out among the park's ten backcountry sites as the only one accessible by both hiking and canoeing — all other backcountry campsites are canoe-access only.

Like the rest of Grundy's backcountry offerings, B10 provides a secluded natural setting with opportunities to observe local wildlife.

Each backcountry campsite at Grundy Lake, including B10, is equipped with a fire pit, picnic table, food locker, and box privy. Backcountry visitors also retain access to the main campground's Visitor Centre and Discovery Program interpretive activities.