This park is very similar. For the last few days, every 10 to 15 minutes the game spawns one or two bulbasaurs at each end, which are probably 1/2 mile apart, so you're constantly walking from one side to the other. In 3 hours I managed to catch over 20 of them and am only one bulbasaur away from being able to evolve to the highest evolution, but I'm still waiting for one with very good IVs, so far I haven't had much luck in that respect. But fatties usually just sit in front of the lures, so when walking from spawn to spawn, you meet a lot new people, who aren't fat.