Objective: 1400 guests and a 600 park rating by the end of year 3.

1. I would stay away from building rollercoaster type rides in this level for at least a year and focus on non-rollercoaster rides, shops, bathrooms, etc.

1a. With those three rollercoaster rides, you may not even need to build another one for this scernario. However, it wouldn't hurt to build, especially before the end to get or keep your park rating up.  Offer free admission, advertise for free park entrance and free rides to entice maximum amount of people in.  I built a slide right near the entrance, and it stayed real busy.  Add or modify long Que lines, short exits wherever possible.

2. Water rides would be best here becuase of the three rollercoaster that come pre built when you load up the scernario, the trick here is where do you want to stuff one. This will take a lot of patience and trial and error, because the terrain is so rugged and forested. Save often when you do something good before proceeding.  If you build a boat rental, you will have to rebuild the walkway across the lake to put one near the bank.

3. Add information booths to help the people find there way around. There is a lot of walkway given to you at the beginning of the game. On the remote walkways, add a lot of shops, benches and minor attractions. There are great places for the scrambler, hedge ride and swinging ships.

4. Keep adding workers at regular intervals to keep up with more people, ride, etc.  Since it's such a large park, sectioning them off may be worthwhile, especially for mechanics.  The handy men I leave free, and when guests complain, I take a look around and parachute the handymen into the heaviest mess areas.  They tend to wander around.

5. Advertising for the park and any new rides should be done at the park at regular intervals to keep the guests comming and a couple a months before the end of year 3 start 6 week campaings on your park to really draw in the crowd.

6. Very important!!!!  Dump your research into creating food stands.  None available when you begin, and guests get hungry and complain.  This affects rating and keeping people there.

7. Increase Park perks  to garner more people into the park.  1400 is a lot, starting from 200 or so.