Ishiyama Rock Brewery is a craft brewery and taproom located near the main gate of Ishiyamadera Temple in Otsu, Shiga. Set near the temple and the Seta River, the brewery was founded with the aim of making locally produced craft beer easy for both residents and visitors to enjoy.

According to its official website, the brewery offers seven original beers. The lineup includes Ishiyama Rock IPA, Ishiyama Rock Hazy IPA, Ishiyama Rock Pale Ale, Ishiyama Rock Weizen, Ishiyama Rock Hazy Double IPA, Ishiyama Rock Black IPA, and Ishiyama Rock Amber Ale.

The taproom also serves recommended guest beers, with up to eight beers available at a time. Guests can choose from large, medium, and small pours, while a three-beer tasting set is available for those who want to compare different styles. Although the taproom does not offer a full food menu, complimentary snack nuts are provided. Food purchased from nearby shops may also be enjoyed inside the taproom.

Regular opening days are Saturdays, Sundays, and public holidays, from 11:30 a.m. to 5:00 p.m. Hours and beer availability may change when the brewery attends events, so visitors should check the official Instagram before visiting. A stop at the taproom offers a chance to pair a temple visit with a relaxed tasting of beers rooted in the Ishiyama area.