ok man, first off you need to say to yourself "I CAN DO THIS" and maybe slap yourself a few times, once that is done You need to get a piece of some kind of metal, Then sharpen it, once that is done you need to decide if you want an axe or a knife, I recommend axe for now, Find a smooth stone, once that is done grind your piece of metal on that rock and shape it into a Half moon shape, Once this is done you can get a thick stick and then some string (Preferably from your shoe) and tie it on there, Once that is done and you now have an axe you will cut down a tree, Once that is done you will now have some log and can now form it too what you want, BUT you do not have a knife, Go find another piece of metal and do what you did with the axe but make a knife, Once that is done you will need to take that knife and carve your log into a Boat.

Now this is where the magick begins, first you put the newly carved boat into the ocean and then you say "Alae Zhick Smaeh Smahr" Than you yell "OH MIGHTY LAWD, PLEASE GIVE ME THE POWER!" And a huge gust of wind will come by and take you on the start of your journey.

Swim

This may be too imaginative. 2.10 - 4.11 is the relevant bit of this video.

Have him make shoes that can walk on water. But, have him put them on his hands instead of his feet and walk on his hands across the water from Croatia to Haiti.

Jet ski

Get an Iphone, turn on airplane mode, and fly on the iphone there.

Oh man i would totally tell you but i don't want to do your assignment for you