Sure, you can hike and bike and work up a sweat before or after, but on a warm day, in a scenic spot, simply sitting down to enjoy good food and company can easily be the main activity. At Tomales Bay State Park, the sheltered location of Heart’s Desire Beach makes it an idyllic spot. The amenities include restrooms, drinking water, picnic tables and charcoal grills. Should you tire of sitting or lying out in the sun, there are also hiking trails in the vicinity, and Heart’s Desire Beach is a popular kayak launch site. When it comes time to eat, a little elevation — like a folding table — will help avoid ingesting sand with every bite. If you’ve got a large group (up to 75), for a fee, you can reserve a table at the Vista Point Group Picnic Area, above Heart’s Desire Beach. At 620 feet, the top of Old St.