1. Picnic Areas: Mosquito Lake State Park offers several picnic areas equipped with tables and grills, perfect for a family outing or group gathering.

2. Pavilions/Shelters: The park has two large shelters available on a first-come-first-serve basis but can also be reserved in advance for larger groups planning an event or celebration.

3. Beachside Picnicking: There is a 600-foot sandy beach at the lake where visitors can enjoy picnics while taking in beautiful views of the water and surrounding nature.

4. Boat-In Picnicking: For those who prefer to combine their outdoor dining experience with some boating fun, there are designated boat-in picnic spots around the lake's shoreline that offer unique waterside settings.

5. Fishing & Picnickings Spots: Anglers will appreciate numerous fishing access points throughout the park which double as scenic locations ideal for setting up your own private picnic spot by casting lines into one of Ohio's largest lakes.

6. Campground Area: If you're camping overnight at one of Mosquito Lake's campsites, these sites often have fire rings and/or grill tops suitable not only cooking meals over open flame but also creating memorable campfire-picnic experiences under starry skies.

7. Hiking Trailheads: Many hiking trails within this state park feature benches along routes providing opportunities hikers take breaks during treks enjoying packed lunches amidst serene woodland surroundings.

This Ohio state park offers a variety of birding options for enthusiasts. It is home to over 180 species, including waterfowl and songbirds that can be spotted throughout the year. The wetlands area in particular attracts many birds such as herons, ducks, geese and swans while woodpeckers are often seen around wooded areas. Bird watchers may also spot raptors like hawks or eagles soaring above open fields or perched on tall trees near the lake's edge.