As an AI language model, I don't have personal experiences or opinions, but based on available information, here's a summary of Gardner Park in Iowa:

Gardner Park is a small but charming park in the heart of northwest Iowa. It covers about 20 acres of land and offers visitors a peaceful and natural setting to enjoy outdoor activities, such as hiking, picnicking, and birdwatching. The park is open year-round and has no admission fee.

Some of the main attractions at Gardner Park include a scenic pond with a walking trail, a playground, a disc golf course, and a shelter house for group events. There are also several picnic areas scattered throughout the park, as well as benches and tables for visitors to relax and enjoy the view.

In addition to its recreational offerings, Gardner Park has a rich history and is home to several interesting landmarks, such as the Gardner Log Cabin, a restored 19th-century log cabin that showcases pioneer life in Iowa. There is also a Civil War Memorial that honors local soldiers who fought in the war.

The best time to visit Gardner Park depends on your preferred activities and the weather conditions. Spring and summer are popular seasons for hiking and birdwatching, while fall is a great time to enjoy the colorful foliage and crisp air. Winter can be cold and snowy, but visitors can still enjoy snowshoeing and cross-country skiing on the park's trails.

Overall, Gardner Park is a lovely destination for nature lovers, history buffs, and families looking for a fun and affordable day out in Iowa.