You will need a kayak, canoe, SUP, or small shallow draft boat to find this cache!
This cache should be reachable at high tide while sitting in a kayak or canoe.
I paddle here several times a year, and am finally getting around to hiding a few caches. This is a great area for kayak, canoe, or SUP. I frequently see cormorants, ducks, blue heron, and deer, and I've occasionaly seen a bald eagle here as well. Solleys Cove Park features a soft launch with drive-up access for loading/unloading, as well as a conventional boat trailer ramp. There is no fee to park or launch here, and a port-a-potty is available. There is plenty of parking, but it can get busy on weekends in-season. It's almost always quiet on weekday mornings, when I typically visit.
These caches are hidden along Marley Creek, south/upstream of the launch. Along the way, you will pass Tanyard Cove, where there are several more caches to find. If you are hungry afterwards, you can cross the channel to Furnace Creek, where there are a couple of restaurants with paddle-up access.
I hid this group of caches at 3-4 hours past high tide, using a stand-up paddleboard. I suspect that all of the caches will be findable at low tide, but a couple of them may require some wading (which could get muddy). Check the tides before you visit (link here) so you will know what to expect.