Cold water is a guarantee.  Cold weather is likely.

In these situations I like to have 2 pairs of footware.  Boots for travelling, shoes/sandals for in camp.

Boots:
Need not be 100% waterproof, but should be reasonably dry.
2 layers of socks, 1 thin liner & 1 warm wooly.  
Never cotton.  Never ever cotton socks.
1 full back-up of socks.
My liner socks are WrightSock Double Layer Coolmesh Socks and are totally comfortable & awesome.

Shoes/Sandals:
I wear sneakers because of my need for orthopedic inserts.
Light socks + gore-tex socks.

Once I'm on-site and relatively set-up I'll switch from my wet socks & boots to sneakers.  If my feet or runners are wet, gore-tex socks on.  They do a great job of helping dry the shoes via the warmth of my feet by not allowing moisture in.

Separate bedtime socks that never leave the sleeping area and are always kept dry.

Springtime is hypothermia time.
Cold feet make for a lousy experience.