Any less crowded, clean beaches near Kalyan/Thane/Mumbai for a chill day out?

Hey everyone! 👋 I’m planning a chill day out with friends and we’re looking for some good spots to hang out. Specifically: * Clean, less crowded beaches near Kalyan, Thane, or Mumbai. * A place where we can relax, play some sports, and just vibe with nature. I’ve heard about Aksa and Gorai beaches, but not sure how crowded they get these days. Are there any hidden gems or lesser-known spots that you'd recommend? Also, bonus points if there are any cool things to do nearby or tips for getting there! 🙏 Thanks a ton in advance! 😊