north along the Chivyrkuisky Isthmus, curving towards northwest at the end, in a smooth arc 27 km long. The isthmus is a low-lying sandy marshland. That part of the shore is a long sandy beach, broken only by the mouth of the Barguzin River (5.5 km north of Cape Kholodyanki, at ). The town of Ust-Berguzin is located on the south margin of that river, about 2 km from the lake's shore. This beach is a popular camping, fishing, and boating destination for tourists, as well as the only land way to the "Holy Nose". By late July water temperatures inside the bay close to the shoreline reach 20 – 21 °C; however, due to occasional strong winds from Baikal, currents of cold water may enter the bay and push the warmer waters closer to the shoreline. The isthmus and its beach end at the foot of the mountainous "Holy Nose". The shoreline turns abruptly to the left, by about 120 degrees, forming the Kultuk Bay. It then runs south by southwest in a slightly concave arc, to Cape Lower Head. A few blunt capes protrude slightly into the bay: Makarova at 6 km from the isthmus (where an intermittent mountain stream of the same name empties into the bay), Bolshoy Makarova at 8 km (the largest one, extending 700 meters into the bay), Osynovy at 10 km, Zelenenky at 14 km, Tolsty at 16 km. That part of the shore is again a narrow strip of large pebbles and rocks, overlooked by steep terrain; except at the very tip of the peninsula. Road R438 runs along the southeast side of Barguzinsky Bay to Ust-Barguzin, then turns east along the river to the city of Barguzin. A mostly unpaved road branches off R438 just north of the river and follows the shore of the bay, along the isthmus. At the Holy Nose it turns northeast towards Chivyrkuisky Bay. A precarious road branches towards southwest, leading down to Cape Makarova. That is the start of a popular hiking trail that leads up to Mount Markov, the highest point of the Holy Nose. Habitation There are two significant towns on the edge of the bay, on the mainland: Maksimikha at the southernmost end and Ust-Barguzin at the easternmost end, just south of the mouth of the Barguzin River. There are holiday resorts on Krutaya Bay, 1 km southeast of Cape Buchenkova, and