The maintenance, improvement, upkeep and repair of public parks
and playgrounds and the structures and fixtures thereon shall be exercised
by the Department of Natural Resources, except as to school playgrounds,
which shall be under the supervision of the School Committee.
It shall be unlawful for any person to be in or remain upon
any park or playground in the City from one hour after sunset until
one hour before sunrise. The Department of Natural Resources may suspend
the operation of this section for any or all parks and/or playgrounds
within its sound discretion by posting a notice in a conspicuous place
in the park and/or playground where suspension is to be in effect
and by stating the hours that it is lawful to remain in said park
and/or playground.