flashman1207 said..
Would this be any good? If not, why?
http://www.gumtree.com.au/s-ad/hilton/surfing/surf-series-6-4-great-beginner-surfboard/1070179488
That could be a great buy for the young bloke provided its not fully hammered on the bottom. 2 or 3 dings well repaired would be acceptable. But look for cracks or fracture lines running across the board which would undermine the integrity of the board & lead to it snapping. Its always a bit suss when people don't have a pic of the bottom side of a board. 2 or 3 small round puncture type dings is generally ok on a $200 board.
The other tufflites people have posted are ok boards but way too much volume for a 12 yo to duck dive. The prices are also very close to what you can pick them up new on special at the end of summer. That 6'4 is the absolute maximum size you should be looking at & I'm only saying that coz he's already 60kg