Is this towel big enough for an adult to lie on?

A round beach towel of this type is typically around 60 inches across, which is enough for one adult to lie on with room to spare. Check the listed diameter before buying if you want two people to share it.

Does it work as a beach blanket as well as a towel?

Yes. The round shape and terry surface let it serve as a ground cover on sand or grass, and it doubles as a drying towel. It is thicker than a dedicated picnic blanket, so it is softer but bulkier to carry.

How should I wash it to protect the fringe and print?

Machine wash cold on a gentle cycle and tumble dry low or line dry. Wash it separately the first few times, since terry lint and fringe can shed, and avoid bleach and high heat to keep the print sharp.

Will sand stick to it?

Terry cotton loop pile can trap some sand, so shake it out and let it dry before folding. It is not a sand-repellent weave like some smooth microfiber beach blankets.

Is it good for travel?

It is fine for car trips and pool bags but bulky for a carry-on. If you need something that packs small, a thin microfiber or Turkish cotton towel is a better fit.