Busan Union of Gravel (BUG) will organize a ride on Sunday March 21: a maximum of 50 riders have the choice between a route of 55 or 77 kilometers. For event details and gravel inspiration, check BUG – Busan Union of Gravel on Facebook. The gravel section of our page is curated by Chris Hennessey – Busan Union of Gravel’s route designer. Check routesbusan.com/gravel for some cool urban gravel routes.