Have a look at some dropshippers below:Link hidden: Login to viewLink hidden: Login to viewLink hidden: Login to viewLink hidden: Login to viewLink hidden: Login to view
To find specific products on their sites, I recommend using the search function and use keywords such as "beach toys" or "swimming" to yield positive results.
The prices listed on the suppliers' websites are mostly in retail so contact them directly for their dropshipping price. As you are probably well aware of, dropshipping is not the same as wholesale in terms of pricing and the profit margin you can have. Rather, it allows you to test a market without too much risk, and expand your product range without having to invest heavily in stock. :)
Hope this helps!