Ahhhh Danshui, my favorite place in all of Taiwan. Beautiful views, great food, history, and good biking. So I must say, welcome to Danshui (淡水)! Stay for a while and enjoy this place. You'll never forget it. This cache is located just about 3 minutes or so from the MRT station. It won't be the quickest find but the coords should be good and hopefully you can leave with a smiley!
From Wikipedia: Tamsui is a sea-side district in New Taipei, Taiwan. It is named after the Tamsui River; the name means "fresh water". The town is popular as a site for viewing the sun setting into the Taiwan Strait. Though modest in size (population 162,441), the district is home to three universities (Aletheia University, Tamkang University, and St. John's University) and has a large role in Taiwanese culture.