Hello, this is very newb question but how do i get off an island that i spawned in, do i have to swim?

How do i make a fire? :D

I bought Dayz yesturday and i optimised it through nvidia but yet when i'm in city, it is nearly unplayable?? i turned everything to low then and it still lagged?? I dont have a great system, i5 4460, 8gb ram, gtx 960 but cmon?? on low graphics i get so much frame drop

I know it is in alpha but i'm wondering will i have to but the full game separately when its released or will the alpha be updates etc??

I have everything on normal, no AA and get like as low as 12 fps in a building or near a building...

thanks for you replies :)

I lag so much in cities even on low and i have i5 4460, gtx 960 and 8 GB RAM