Few live cams are as quietly hypnotic as this one. Inside the Monterey Bay Aquarium, a tank of moon jellies drifts in slow circles, bells pulsing against a deep blue backdrop. The camera holds steady while the animals do all the work, rising, folding and sinking through the water in a loop that never quite repeats.
Why Moon Jellies? Moon jellies are built for watching. Their bells are almost see through, so you can follow the four petal shaped gonads at the centre and the fine fringe of tentacles trailing behind. The aquarium keeps a gentle current moving through the tank, which is what gives the animals their endless, unhurried drift across the frame.
Moon Jelly Exhibit highlights: As you enjoy the live view, be sure to look out for:
- Pulsing Bells: Watch the rhythmic contraction of each bell, the simple muscular pulse that propels a jelly upward before it slowly sinks again.
- Colour Shifts: Diet changes their tint, with crustacean feeding turning jellies pink or lavender and brine shrimp lending an orange cast to the bell.
- Trailing Fringe: Look for the fine stinging fringe around the bell margin, the fringe these drifters use to capture tiny prey from the water.
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Beyond the Tank: The aquarium sits on Cannery Row at the edge of Monterey Bay, where kelp forests, sea otters and harbour seals are part of daily life just outside the windows. The wider Monterey Peninsula takes in Pacific Grove, Carmel and the rocky coastline that runs south toward Big Sur.
This view comes courtesy of the Monterey Bay Aquarium, which runs a whole family of live cams from its exhibits and the bay beyond. Sharing a window into the jelly gallery with anyone who wants to look is a generous thing, and we are grateful for it.
Open the stream, let the bells rise and fall for a few minutes, and see why so many people leave this particular cam running all day.
Live Cam

