Seven students and three staff from the Northern Youth Leadership program took part in a week-long science expedition on Great Slave Lake aboard the R/V Nahidik. The students assisted in the retrieval and redeployment of a full-depth, year-round mooring with 11 recording thermometers. As a part of the expedition the students also operated an ROV, and collected both water and sediment samples from the lake. These initial studies of the lake’s physics and bathymetry will provide a basis for future research programs in the area.