When you are racing Nate on the jet ski, point your mouse above and ahead of your character, which will speed it up.
To use the jet ski, you must get the keys from Cap'n Salty by recovering his lost lobster trap. You also have to climb the lighthouse and use the telescope to see Seal Island to the right of Puffin Point.
(see related questions)
you need the jet ski to get the map for the time caupsul
You go to the harbour and click on the jet skies. after that you will compete with Nate to the island with the map.
you click to jump and then move your mouse to move your jet-ski.
Tilt the rock by moving the seals to the left side. You can now retrieve the paper, which is a map to the Time Capsule on Big Nate island.
Look through the telescope on top of the lighthouse to see where you are going : the seal rock has a map under it. Race Nate to the island to get the map.
You have to look through the telescope on top of the lighthouse to see where you are racing to, which is the island with the seals and the seesaw rock.
You don't use the boat on Big Nate island. When you have recovered Cap'n Salty's lost lobster trap, he will give you the keys to his jet ski. Look through the telescope atop the lighthouse to see where you are headed. You also have to outrace Nate.
First you need the keys to the ski jet. Go up the lighthouse to the painter and ask him to see through his telescope. Look through and use your mouse to go right and up. You will see a paper wedged between a rock. Go down and click on the ski jet. Nate will run up to you and you start racing.
It is to the right of the school. (There is a big space to cross by clicking "go right".) Big Nate Island (left to right) : Blimp landing / Business District / School / Playground / Lighthouse / Seal Rocks (last by jet ski only)
When you reach the water by the lighthouse, you will need the jet ski to go out farther. (see related question)
The key fits the jet ski, so you can race Nate out to the seal island to the right of the lighthouse (you can see it through the telescope). The map to the time capsule location is there. (see related question)
You don't. Give the trap to the old man (Cap'n Salty) and he will give you a lobster and the keys to his jet ski.