Game Revolution: Sim Park
Offers cheat codes.
GameSpot: SimPark Review
Rated 6.5/10 by Rebecca B. Anderson. "In the Maxis tradition of creating totally immersive sim games, being a park ranger is more than greeting park visitors - it's work, but it's also fun." [Subscription required.] Free reader reviews, codes, and 5 screenshots.
SimPark
Offers program overview, and hints.