Omi Monastery is a temple of monks close to Jin's home of Omi Village in Toyotama. It ties into Masako's hunt for conspirators and hides the cave where the last duel of The Six Blades of Kojiro takes place.
After you beat Kojiro's five Straw Hat followers, he challenges Jin from the cave here. He chose it because it is on Sakai clan land. Win the duel to earn the Kensei Armor.
Cloud Ridge Shrine
Cloud Ridge Shrine is a Shinto shrine climb in Kushi, Toyotama, dedicated to Azumi-no-Isora, kami of the seashore. Reach the summit to earn the Charm of Azumi-no-Isora, a major charm: arrows make no sound on impact.
Umugi Cove
Umugi Cove is a pirate town in Umugi run by Lady Sanjo and her ronin. Fighting is banned inside, so Jin cannot draw any weapon while in town.
Akashima Village
Akashima Village, in the prefecture of the same name, is the starting point of Norio's storyline. It has a full set of vendors, so it is a good resupply stop in western Toyotama.
Bamboo Forest Hot Spring
Bamboo Forest Hot Spring sits in Kushi, part of Toyotama, and is one of the game's 20 Hot Springs. Soak there once and Jin's maximum health goes up permanently.