Yes there is. We took it two weeks ago. The boat launch is right past the Hospitality House. They will give you directions and it is a nice ride-especially at night.
You can also walk directly from OKW to SSR. Catch the path just past building #55 at OKW. The path goes to DD, but also just before you get to DD, take the bridge over to SSR. You'll be very close to where the boat landing for SSR is located.