Wireless Internet service is now available to Optimum Online customers at hundreds of indoor retail locations across Long Island, Cablevision announced Thursday morning.

Optimum Wi-Fi service, which has been available for free to its customers for two years at various outdoor hotspots, is being offered at the indoor locations through a partnership with Optimum Business, Bethpage-based Cablevision said. Cablevision owns Newsday.

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A list of indoor locations includes several bagel shops, oil change shops (indicated in photo by shaded area that shows a Jiffy Lube on Merrick Road in Seaford), marinas and yacht clubs.

For a map showing hotspots, click here.