Looking on the internet deeply has found these results:

throw in the beach is the most popular phrase on the web.

throw on the beach 13,960,000 results on the web	throw in the beach 14,940,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
You can throw up all you want at the beach. He should have money, live in a cool place by the beach where we throw parties. If you ever need someone to throw the ball around with him some Sunday, take him to the beach... I just thought I'd throw on one of their robes. On the beach. Dina worked on the beach. Throw his famous Labor Day party at the beach. The beach, gardens, Palais Royale... Throw on one of Nik's jackets.	If you ever need someone to throw the ball around with him some Sunday, take him to the beach... Throw his famous Labor Day party at the beach. You can throw up all you want at the beach. On the beach. Dina worked on the beach. You've been talking about the beach and only the beach for the entire afternoon. Field trips to the beach, a bed in your classroom, drinking at the beach, a screening of Texas Chainsaw Massacre 1. He should have money, live in a cool place by the beach where we throw parties. The beach, gardens, Palais Royale...

throw on the beach

13,960,000 results on the web

throw in the beach

14,940,000 results on the web

More popular!

You can throw up all you want at the beach.
He should have money, live in a cool place by the beach where we throw parties.
If you ever need someone to throw the ball around with him some Sunday, take him to the beach...
I just thought I'd throw on one of their robes.
On the beach. Dina worked on the beach.
Throw his famous Labor Day party at the beach.
The beach, gardens, Palais Royale...
Throw on one of Nik's jackets.

If you ever need someone to throw the ball around with him some Sunday, take him to the beach...
Throw his famous Labor Day party at the beach.
You can throw up all you want at the beach.
On the beach. Dina worked on the beach.
You've been talking about the beach and only the beach for the entire afternoon.
Field trips to the beach, a bed in your classroom, drinking at the beach, a screening of Texas Chainsaw Massacre 1.
He should have money, live in a cool place by the beach where we throw parties.
The beach, gardens, Palais Royale...