Hi all,

I have to come up with something that'll measure objects up to about 5
metres long in the water alongside our boat.

Surveyors open reel tapes are a likely option, with a float on the end,
except that I really don't want 30 metres of tape if I only need 5.
There's also the problem of not easily being able to read the length
without clear metre markings.

I need something that will have a handle and winding reel so Scuba
reels are another choice but I'd have to find a way to mark or attach
vb cord / dacron / whatever in different colours for each metre.

Has anyone got any suggestions on any kind of waterproof reels or
marking tricks that might help me out?

Thanks very much!