The MV Cuma was initially constructed for scientific marine research. The hull is of timber and was built by Samuel White of Cockenzie in 1967 to Lloyds+100 A1 specifications. The vessel was converted and upgraded for commercial diving and cruising charter operations and complies with Maritime & Coastguard Agency Code of Practice Regulations. The vessel is 18.5 meters long and is powered by a 200 horsepower Gardner engine, which is renowned for its reliability. Ample 240 Volt power is delivered by a quiet running generator.

Comfortable accommodation is provided for 12 persons in two berth cabins each with hot and cold water. There is also separate crew accommodation. There is a large deck saloon with ample seating and large viewing windows. There are also 3 toilets and two showers. The accommodation is centrally heated throughout.

The galley is equipped with gas cookers, microwave, fridge and deep freeze. There is also a tumble drier provided.

Meals – A variety of cereals and a choice of any cooked breakfast up to a full Scottish. Pack lunches are also supplied. Main meals are provided in the evening