Lake Roxburgh is a reservoir on the Clutha River in Central Otago, New Zealand, formed by the Roxburgh Hydro Dam. The lake stretches approximately 30 kilometres, making it a substantial body of water for kayaking and other paddling activities. It sits within a landscape shaped by the surrounding Teviot Valley hills, with the schist rock character typical of Central Otago.

The primary access point for paddlers is the boat ramp located at the top of the dam wall at Lake Roxburgh Village, which lies five kilometres upstream from Roxburgh township. This village, originally constructed to house dam workers, now offers accommodation, coffee, and meals at a licensed lodge, providing useful amenities for paddlers planning day trips or overnight stays. McKenzies Beach, accessible by car via Knobby's Road on the east side of the river, serves as a popular picnic spot on the lake and represents another point of interest along the shoreline.

The lake connects with two notable trail systems — the Roxburgh Gorge Trail and the Clutha Gold Trail — which converge at Lake Roxburgh Village. The Roxburgh Gorge Trail begins above the village and offers views over the Teviot Valley and the lake as it heads toward Shingle Creek. Paddlers interested in the broader landscape context will find the Commissioner's Walk, accessible across the dam from the village, provides historical context about the dam's construction, including a 20-metre schist bridge buttress, rock shelter remains, and interpretive panels.

Fishing is a popular activity on the lake alongside kayaking, with the water well stocked with both brown and rainbow trout. Salmon are also caught in the Clutha River below the dam. The dam itself is one of the few in New Zealand that can be driven over, with the lake visible on one side and the river below on the other — a notable landmark for paddlers approaching the southern end of the lake. The first power was generated at the Roxburgh Hydro Dam in 1956, making it among the earliest large hydro projects in the South Island.