Sands are close to white, water is pretty much crystal clear. The only issue might be finding a place to hide away from the sun. The beach is huge, and there are lots of surfers and tourists. Watch out for the 25km of dirt road that might take a toll on your car... :(
If you own or manage Nosara Beach (Playa Guiones), register now for free tools to enhance your listing, attract new reviews, and respond to reviewers.