How about a porcelain tile that's not slippery? There are some with a good amount of texture so they're not slippery at all.

And you can use epoxy grout, which keeps clean a lot better. Darker colors can help as well.

A lot of bamboos are riddled with issues, but one that isn't? From Terragren/TimberGrass.

Unlike many others, all plies are solid bamboo. No softwoods as the underply layers. Their aluminum oxide finish is as close as you can get to bullet-proof.

It's the only bamboo that I'll install in commercial locations, it's the one I really encourage for residential, too.

Mongo

Thanks, weedy & mongo! Will check out your suggestions!

Stinky

mongo, do you think strandwoven would work well in a 3/4 bath (the shower not used all that much, but is used some)? I saw it put into a primary bath on HGTV and thought it might be the answer to our problems. But a question re any bamboo: what do you do with the spaces between the planks? Water can get down there, can't it, even if it's pulled tight? I was thinking strandwoven, with the high resin content, would be less permeable in general, but water could still get *between* the planks...and we have vinyl in that bathroom now, which I'd love to leave down and just put the wood over (with an extra layer in between)...