The World's Underwater Fiber Optic Cables - Core77
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Fun fact: In Alaska, the permafrost makes laying underground cables impractical. It's also not cost-effective to build overhead lines suspended from anchored poles. So to get broadband internet to rural interior communities, they use underwater fiber-optic lines laid in rivers.
Those are images from this free online Submarine Cable Map, which is maintained by telecoms industry analyst TeleGeography. You can zoom in and out on the map and click on each cable to see which company owns it.
That's a fiber optic splice kit made by Ohio-based PMI Industries. It allows "a highly reliable, full ocean-depth splice with multiple levels of sealing protection."
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