Almost 400 acres of diverse recreation opportunities--from golf and soccer and tennis to hiking and picnicking.. In Short Since 1910, Grant Park has provided a wide array of choices for those wanting to get outside (in both summer and winter months). The park features cross-country skiing, biking and hiking trails--depending on the season. Or wander down to the huge beach (with lifeguards in the summer months) and take a jump into Lake Michigan. Concessions are available.