Winter is here (believe it or not), which means it's time to bring the sled down from the rafters – or up from the basement – and wax up the bottom and make sure the handles are tight.

OnMilwaukee.com is happy to provide you with a list of some of the best hills in the county, which will soon be covered with snow, children and some really big kids who haven't quite grown up yet.

Look below for an interesting video produced by Marquette University's Dr. Chris Stockdale, an associate professor of physics who helps new (and seasoned) sledders get it right.

You can hit the hills at any of the sledding spots listed below during the day, and then take advantage of the area parks' lighted hills if you're not quite ready to come in when the street lights come on.

Columbus Park
7301 W. Courtland Ave.

Dretzka Park
12020 W. Bradley Rd.

Greene Park
4235 S. Lipton Ave.

Hales Corners Park
5765 S. New Berlin Rd., Hales Corners

Hawthorn Glen
1130 N 60th St.

Kern Park
3614 N. Humboldt Blvd.

Kinderburg Park
Donges Bay Road & Preserve Parkway, Germantown

Lafayette Hill
Next to the tennis courts across from McKinley Marina

LaFollette Park
9418 W. Washington St.

Maitland Park
6001 S. 13th St.

McCarty Park
2567 S. 79th St.

McGovern Park
5400 N. 51st St.

Mitchell Park
524 S. Layton Blvd.

Riverside Park
1500 E. Park Pl.

St. Mary's Hill
2323 N. Lake Dr.

Sheridan Park
4800 S. Lake Dr., Cudahy

Valley View Park
5051 S. Sunnyslope Rd., New Berlin

Wilson Recreation Park
4001 S. 20th St.

The Milwaukee County Parks once again provide lighting at the following sledding sites, so don an extra layer and hit these hills before and after dark:

Brown Deer Park
7835 N. Green Bay Rd.; lighted until 8 p.m.

Currie Park
3535 N. Mayfair Rd.; lighted until 9 p.m.

Humboldt Park
3000 S. Howell Ave.; lighted until 8 p.m.

Pulaski Park
2677 S. 16th St.; lighted until 10 p.m.

Whitnall Park
5879 S. 92nd St.; lit until 10 p.m.

Whitnall Park traditionally keeps its clubhouse open for sledders from 11 a.m. to 8 p.m. on Saturdays and noon to 6 p.m. on Sundays, so warm up with a cup of hot cocoa before, during or after the fun.

For those parents who will be bringing new sledders to the hills, or for those veterans who want to brush up on the skills, Marquette's Dr. Chris Stockdale imparts some lessons in the following video.

If you do it right, then maybe you can unleash your inner Griswold!