For its members only, Costco offers the GoPro Hero5 4K Action Camera Bundle for $289 $289.99 with free shipping. (You have to be signed in to see this price.) That's the lowest price we could find for this bundle by $111.

The camera is waterproof up to 33 feet without a housing and features up to 4K video recording, 2" touch display, a 12-megapixel photo resolution, voice control, WiFi, USB-C, microSD card slot, rechargeable Li-ion battery, and multiple mounting options. The bundle also includes the GoPro Hero5 Dual Charger and Battery, GoPro Head Strap and QuickClip, and Sandisk 16GB Extreme MicroSD Card and Adapter.