Ichiu is dominated by steep and relatively tall mountains. The town is situated on the upper part of the Sadamitsu River.
Ichiu has one junior high school, and one elementary school, Komi Elementary. Due to lack of students, Ichiu Junior High School closed in spring 2010.
- Ichiu is known as "The Land of Giant Trees," and is home to a number of large, old trees. "Akabane Taishi no Enoki" is the oldest hackberry tree in Japan at an estimated 800 years old; it has a circumference of 8.7 meters. Ichiu is also home to Shikoku's oldest horse chestnut and Japanese red pine.
- Dogama is a series of pools, rapids and waterfalls formed as the Sadamitsu river flows through a slot canyon. It is notable for the deep blue-green color of its water.
- Mount Tsurugi and the Iya Valley may be accessed via Route 438 through Ichiu.