Lake Onega of Petrozavodsk–Kizhi, Petrozavodsk–Velikaya Guba and Petrozavodsk–Shala. They are run by hydrofoil and motor ships and are used for passenger transport as well. In addition, passenger ships go on the route Petrozavodsk – Shala. Sailing is a popular activity on the lake and there is a sailing club in Petrozavodsk. Since 1972, every year at the end of July the lake has hosted the largest regatta in Russia ("") which is the Russian Open Championship in the Russian class of Cruisers Yachts "Open800". The regatta has international status. The largest city on the lake is Petrozavodsk – the capital of Republic
Lake Kenozero shape is determined by the fact that Lake Kenozero is located in the rift of the earthcrust, in contrast to other lakes in Kenozersky National Park, all of them being of glacial origin. There are over 70 islands on Lake Kenozero. Until the 1990s, the lake served for timber rafting. The rafts were made in the course of the Undosha and the destination was the Onega. There are a dozen of villages at the lakeshore, the biggest of which are Vershinino and Pershlakhta. The road connects the northern shore (in particular, Ust-Pocha, Vershinino, and Pershlakhta) with "Onezhsky Trakt", the road