Arthurs Lake has two notable boat ramps providing access to this central Tasmanian highland reservoir, both owned by Hydro Tasmania.

The Jonah Bay Boat Ramp , located off Gunns Marsh Road via Poatina Road, sits along the shoreline at Jonah Bay and offers access to the upper reaches of the lake. The Arthurs Dam Boat Ramp is situated near the dam wall at the lake's southern end.

Both facilities feature dual-lane concrete ramps with a central pontoon platform, making launching and retrieval straightforward. Car parking is available at each site. A white navigation light is located on the shore near the Jonah Bay ramp.

Note that Jonah Bay ramp can become unusable during periods of low water levels, so checking current lake levels before visiting is advisable.