If you are planning for any beach then dana pani beach is quite good place to visit.
Talking about the cleanliness its moderate.The beach had quite similar sitting wall like marine lines, where you can seat and enjoy the wind with beautiful scenery.
There are stall for vada pav and all, just close to the beach.
Best time to visit the beach is in the morning between 7am to 11 am.
You can go there by bus, car and best one is the bike, As there you can park bike, car and have fun on the beach.