I played it a few years ago, it's about 2700 yards, par 35. Really neat place, as long as you aren't expecting something on the order of Brora. It's a crusty links layout perched on the seacliff, pure golf of an old yankee nature only found on the Cape and Long Island. Extra points for a pretty lighthouse on property, wildflowers, and weathered shingles.
Standout holes include the valley 2nd, a great dunetop par three in the middle, and the 9th, a short par three with two sde-by-side tiers and the lighthouse behind the green.
My family has started a yearly summer weekend to Wellfleet, and I've been itching to get back to take a few photos.