On your second trip to Loch ness, play darts to get the submarine ticket. Dive to the bottom where you will find a colorful "Nessie" head. Take the photo to the Pub, where it is revealed as a movie prop. But if you beat the original dart player, the bartender will give you the Pennywhistle. Take the rowboat out alone and you can use the pennywhistle to lure Nessie for a picture.
If you use the sub, I think you will find/see? Nessie.
The prize for seeing Nessie on the Cryptids Island Preview was a Nessie hat.
The prize for spotting Nessie during the Cryptids Island preview (beginning December 2, 2010) was a Nessie Hat. (see related link)
On the submarine tour, dive to the bottom and you can photograph a colorful "Nessie" head. But when you take it back to the Pub, it turns out to be a picture of a movie prop.
Along the bottom, you will find a brightly-colored Nessie face and get a photo of it. Bring it back to the pub where it is revealed to be a movie prop.
You don't. When you are in the submarine and find the Nessie "head", position the light on it and take a photo. Show it to the dart players at the pub.
Dive to the bottom and then go left.
During the special preview of Cryptids Island (beginning December 2, 2010), anyone who spotted Nessie got a special Nessie hat. However, you could not always see Nessie, and when you did she was a distant shape on the loch. (see related link)
Yes, you can find proof of The Jersey Devil, Bigfoot, Nessie, and the Chupacabra. (see related question)
The viewfinder game was part of the demo of Cryptids island and had almost nothing to do with the quest. It was possible to see a hazy outline of Nessie after you saw the dog barking. If you did, you received a Nessie costume prize.
There does not seem to be a horn on Cryptids Island. There is a flute (a pennywhistle) which you receive after the submarine ride, after you defeat the sore loser at darts again.
On the submarine tour, dive to the bottom and you can photograph a colorful "Nessie" head. But when you take it back to the Pub, it turns out to be a picture of a movie prop. Beat the first dart player again to get a pennywhistle from the bartender. Take the rowboat out again (alone) and use the whistle to lure Nessie. (see the related question below)