Bas Burger Seonyudo sits right in front of Seonyudo Station Exit 4 and close to Seonyudo Park, serving handmade burgers with thick patties. The menu includes the Bas Burger, Double Bas Burger, and Wasabi Mayo Shrimp Burger, with whole shrimp and juicy patties as the defining features. Inside, a self-service bar lets customers take unlimited James potato chips, and burgers are cooked to order. Many customers take their burgers to Seonyudo Park as takeout.