High Park holds many memories for me, especially childhood ones because I use to run races here all the time. If you're doing the Spring Run Off 8 km, be prepared to sweat. It's a good race. You will need a very, very long bath afterwards!
VIBE
High Park is huge and has lots of hills. This is not a place to be wearing your Manolo Blahniks. Spring Road is the killer road. At the Spring Run off, this straight up hill is the last kilometer. You will need all of those people cheering you on to get you up that hill. Or play Elastic Band's "Running Up that HIll" on your ipod.
THE GOODS
A zoo, awesome trails, cherry blossoms in the spring, fall foilage in the fall, a nice little duck pond and a cute coffee shop nearby, this is the park with the goods. Oh and how could I forget about Grenadier Pond? It's a lovely walk.
There's tons of tennis courts and I think a swimming pool too.
OBLIGATORY CATCHY REMARK
No need to get "high" off this park. It's all natural!