Boat Slip Lease Available For The Summer of 2017. Slip D-17 is an open/uncovered (Fingerslip) on Lake Memphremagog. D building slips measure approximately 9'x18' each and can accommodate most boats upwards of 24-28 feet long. Fingerslips are under the limited time use of approx. May 15th to October 15th of each year. Great spot to park your boat at the Newport Marina. Includes rights to common areas, storage locker and full bathrooms. Gas pumps and repair shop onsite. Available at a reduced rental rate of $900 for the season. Call Ryan Pronto for more details.