The director and the recreation and parks department employees will regulate activities
in picnic areas when necessary to prevent congestion and to secure the maximum use
for the comfort and convenience of all. If the facilities are crowded, persons holding
activities in any park picnic area, building or structure will avoid using the area,
building or structure to the exclusion of others for an unreasonable time, the determination
of what is unreasonable being at the discretion of the park manager. Use of the individual
fireplaces, together with tables and benches, follows generally the rule of first
come, first served, unless specifically permitted by the director.