There's nothing like relaxing by the water while you're on vacation. Take a picnic to Suiren Pond and then stay for a lovely sunset.
You're spoiled for sightseeing choice when staying in Towada. Suiren Pond is an ideal place to start here, but there are loads of other interesting sights to appreciate. Hakkoda Ski Area, Hakkoda Ropeway, and Hakkoda Death March Memorial are near the body of water and and will cap off your day nicely.