Poptropica Towers is the area in the far left of the island.
It was a name thought up by Jeff Kinney and the creators of the concept, with the vague connotation of a "tropical" island setting.
You go into the map on early poptropica and u click restart island on the left
After you have to capture Nessie, The New Jersey Devil, and The Chupacabra, then Mews will tell you where to catch it, which is the Pacific Northwest. You will get there and chase Big foot back to...
Poptropica's second island was Shark Tooth Island.