How do I reserve a shelter in Warner Parks? December 2, 2014 7:13 pm admin Certain picnic shelters in Warner Parks may be reserved from April through October. Reservations may be made in two ways: CALL 615.862.8408 between the hours of 8 a.m. and 12 p.m., Monday through Friday. VISIT the Metro Parks office at 511 Oman Street, Nashville, TN 37203, between the hours of 1 and 3 p.m., Monday through Friday. Click here for additional shelter reservation information.