Grant Lake Marina is closed. Boats can be launched off the beach near the highway down near the North end but four wheel drive may be needed. Most of the shoreline is accessible either from the highway, dirt roads along the backside, or on foot to the Rush Creek inlet area. Also be aware here not to fish into the creek as it is closed. What I would do at Grant is fish lures or night crawlers on a bobber from shore in that inlet end or the same with a float tube hitting the submerged creek channel and near it.