Edmonds Underwater Park (EUP) is a local classic scuba diving site in the northern Seattle (Washington, United States) suburb of Edmonds immediately north of the Edmonds Washington State Ferry terminal on the Edmonds-Kingston route. EUP is relatively shallow with a maximum depth of about 45 feet. There is a grid network of anchored ropes that lead to a variety of submerged features. The park is built and maintained by a group of volunteers that meet every Saturday and Sunday at 9 am.