The Nature Conservancy has dedicated 91.2 acres as Sundrop Prairie Nature Preserve. This prairie is in an area known collectively as the Indian Boundary Prairies. The other prairies are Gensburg-Markham Prairie Nature Preserve, Paintbrush Prairie Nature Preserve, and Dropseed Prairie Nature Preserve. The Indian Boundary Prairies are a surviving remnant of a vast prairie that once extended along Lake Michigan in the Chicago Lake Plain Section of the Northeastern Morainal Natural Division of Illinois.

Sun Drop Prairie

4518 W. 150th Street
(708) 687-3807
Pool Hours
Saturdays 12:00 - 5:00 p.m.
Sundays 12:00 - 5:00 p.m.
Weekdays 11:00 a.m. - 5:00 p.m. and 6:00 - 9:00 p.m.
Membership Fees:

Family* (4 or less) $160.00 R/$195.00 NR
Each Additional (3 max)$10.00 R & NR
Family* (2 or less) $120.00 R/$160.00 NR
Single (all ages) $95.00 R/$125.00 NR
Senior (55 & older) $40.00 R/$50.00 NR
Children 2 & under FREE
Book of 10 Daily Passes $50.00 Residents ONLY

*Family includes no more than 2 adults 18 & older living in the same household

Daily Fees Single (All Ages) $6.00 R/$10.00 NR
Senior (55 & older) $2.00 R/$4.00 NR
Evening (6 – 9 p.m.) $4.00 R/$8.00 NR