You get the Pennywhistle after your third victory in the darts game at the Pub. Take the rowboat out again (the operator has taken off) and go left twice, to a secluded lagoon on the loch. Use the pennywhistle there to summon Nessie.
just keep following from a distance
Watch all the myth videos and let the guy brief you on the mission.
If you're talking about the guy on Cryptids island, then click on hhis left tire and let all the air out.
There is no wrench on Cryptids Island. At Loch Ness, click on the left tire, then click and hold the valve stem to let the air out of the trailer tires. At New Jersey, you can cut the lock from the dumpster with bolt cutters from Puerto Rico (upper left star on the jeep map).
Go into the kite store and talk to the lady, and she will let you borrow one for free (just click on any of the kites). You can return it when you are through, or it will appear again the next time you visit Cryptids Island. A kite is like a large "follower" anytime you are outdoors on the main part of Cryptids Island (not the other geographic locales). Like the balloons on Counterfeit Island, the kites lift you up, so you can jump higher. In fact, you can see the entire "Bigfoot or Bust" pedal-blimp at Cliff Park.
try again later probaly
After you have confirmed the other three cryptids (Nessie, Chupacabra, and the Jersey Devil), and brought back the inconclusive footprint from the Himalayas, Mews will send you in pursuit of Bigfoot, which is similar to the Yeti. Since you have him in a cage at the end (but let him out), he is definitely confirmed.
The poles let you climb the hill at the upper left star in Puerto Rico. At the top are some Bolt Cutters you need in New Jersey.
It is on the side of the tire. Once you talk to the man with the truck, click the left side, then click and hold where the arrow shows, to let air out of the tire.
Once you get onto her helicopter, click the gas tank to let the gas out. Then jump onto the cage and use the gardening shears to cut the rope.
After you finish the island, the Chupacabra and Jersey Devil are long gone, and if you visit the Northwest, all you see is the caves. Likewise, if you take the rowboat Lil' Ness back to the lagoon, Nessie has swum away and doesn't answer the whistle. One thing you can do is explore the main island, and fly a kite from the store. Like the balloons on Counterfeit Island, the kites let you jump higher. But you can't take them to the foreign locations.
The trailer is too high to go under. Let some air out of the tires. Click the left tire, then click and hold the valve stem.