Take a 90 Minute, 26-mile guided Jet Ski Tour around Marathon to see our islands from a fresh point of view. Age restrictions may apply. Departure Times: April-Oct: 10 am, 12:30 pm, 3 pm, 6 pm*. Nov-March: 10 am, 12:30 pm & 3 pm. *Sunset time subject to slight changes according to sunset time. Call to reserve today or book online. Located at Mile Marker 47, Oceanside.