Read time: About 8 minutes
Hey there. Hiroshi here, from "Ramen, Beer & Blog."
The other day, my wife, our Shiba Inu Momiji, and I drove out to Jonanjima Seaside Park (Jonanjima Kaihin Koen), a large waterfront park in Ota City, Tokyo — right on the southern edge of Haneda Airport.
I'll be honest: the walk wasn't the main reason we came. The real goal was to film some footage for a background-music channel I quietly started recently. More on that at the very end.
In this post I'll cover what people actually want to know before going: do the planes really fly overhead, what does parking cost, and can dogs walk on Tsubasa Beach — all from a day I actually spent there.
Who this is for
- Anyone wanting to know how the planes look from Jonanjima (including photographers)
- People who want the parking fees, capacity, and crowd level up front
- Dog owners wondering if they can bring their pup onto the sand at Tsubasa Beach
The short answer (to the questions you're searching for)
- Yes — jets pass low, overhead and head-on. The park sits just south of Haneda, so depending on the wind, airliners fly by one after another. Even a phone camera caught them clearly.
- Parking is paid, 267 spaces total (Lot 1 = 83, Lot 2 = 184). Open 7:30–21:00. About $2 for the first hour, then about $0.70 per 30 minutes. On a weekday morning it was nearly empty.
- Dogs are welcome. On a leash, they can walk the paths, the lawn, and the sand at Tsubasa Beach. There's a free dog run too, but it needs online registration first. No swimming or fishing.
Contents
- What is Jonanjima Seaside Park? Parking and the basics
- Planes fly overhead | the main attraction
- Are dogs allowed on Tsubasa Beach?
- Tsubasa Beach and the Tokyo Bay view | you can see Skytree
- The lawn and the tropical trees | shade on a hot day
- Why Jonanjima | the day I came to film
- Wrapping up
What is Jonanjima Seaside Park? Parking and the basics
Jonanjima is a man-made island at the very back of Tokyo's port. It's ringed by logistics warehouses and stacked shipping containers. Honestly, it's less a "seaside park" and more "a little experience zone on the edge of Tokyo Bay."
Haneda's planes, big cargo ships, a man-made beach, a dog run, a skate plaza, campgrounds — all packed into one park. First, here are the numbers for anyone heading out.
| Item | Details |
|---|---|
| Location | 4-2-2 Jonanjima, Ota City, Tokyo |
| Parking | Paid, 267 spaces total (Lot 1 = 83, Lot 2 = 184) / 7:30–21:00 / about $2 first hour, then about $0.70 per 30 min |
| Admission | Free |
| Planes | Just south of Haneda Airport. With the right wind, jets pass overhead or head-on |
| Dogs | On a leash on paths, lawn, and the Tsubasa Beach sand (no off-leash). Dog run ~2,800 m² (free, online registration required, 7:00–21:00) |
| Tsubasa Beach | Man-made beach (~450 m long, up to 75 m wide). No swimming or fishing / sand play, strolling, and clam digging OK (clams are scarce) |
| Main facilities | Tsubasa Beach / dog run / skate plaza (Tokyo's first in a metro park, registration required) / campgrounds (reservation only) / lawn |
| Note | No open flames, fireworks, kite-flying, drones, or RC craft (it's directly under a flight path). Watch for crows, too |
| Access | By car: Shuto Expwy Bayshore Line, Oi-Minami ramp area / By bus: Keikyu Bus Mori 32 from JR Omori Sta. to "Jonanjima 4-chome," 3-min walk (fewer buses on Sundays) |
| Official site | Jonanjima Seaside Park (Tokyo Port South Sea Parks) |
We came by car. With 267 spaces across the two lots, my weekday arrival around 10 a.m. found both nearly empty — no stress about finding a spot. It's about $2 for the first hour and roughly $0.70 for each 30 minutes after that, so even a half-day of wandering stays cheap.
One heads-up: "prohibited" signs are everywhere. No swimming or fishing at Tsubasa Beach. And park-wide, no fireworks, kite-flying, drones, or RC craft.
At first I wondered why kites and drones were banned — then I looked up and got it instantly. The planes from Haneda fly right over your head here. Of course you can't fly a kite into that.
Planes fly overhead | the main attraction
The real star of this park is, without a doubt, the planes.
Jonanjima sits just south of Haneda. The airport is right across the water. So when the weather and wind line up, jets that just took off come over your head one after another, flying low. I could have watched it all day.
JAL, Cathay, all sorts of liveries, sharp against the blue sky. Just a phone, no telephoto lens, and I still got shots this clear — you can read the paint job. Kids will absolutely love it.
One thing worth knowing in advance: Haneda switches its "runway operation" with the wind. On south-wind days the route tends to pass over Jonanjima; on north-wind days it can reverse and skip the overhead pass. If you really want them right above you, check Haneda's operating direction (south/north wind) online before you go — it cuts down on misses.
That said, the operation isn't fixed, so coming casually — like me, "oh hey, today's a good one" — works just fine too.
Are dogs allowed on Tsubasa Beach?
This is probably the first thing dog owners want to know, so here's the answer up front: yes, Jonanjima Seaside Park is dog-friendly. On a leash, your dog can walk the paths, the lawn, and the sand at Tsubasa Beach.
The moment I set Momiji down on the sand, her tail fluffed up and she was in heaven. She loves the water's edge. The smell of the sea and the feel of sand under her paws clearly did it for her.
Tsubasa Beach is the third man-made beach built in Tokyo's port, about 450 m long and up to 75 m wide — quite roomy. The sand is dark, with shells and driftwood scattered around. But no swimming and no fishing. Think of it as a beach for sand play, strolling, and plane-watching. Clam digging is technically allowed, but clams have grown scarce, so don't get your hopes too high.
Another plus for dog owners is the dedicated dog run: about 2,800 m², split into a free area and a small-dog-only area, and free to use. The catch is you must register online in advance; hours are 7:00–21:00. You can't just show up and unclip the leash, so sort the registration out beforehand. If you want to let your dog run somewhere besides the sand, give it a try.
※ Off-leash is not allowed on the beach or paths — always use a leash, and clean up after your dog. The sea and a dog are a perfect match, but "dog-friendly" only works with good manners. If you'd rather walk a dog by the sea on the Kanagawa side, I also recommend our seaside walk at Kannonzaki with Momiji.
Tsubasa Beach and the Tokyo Bay view | you can see Skytree
I kept looking up at the planes, but the view across the water was something too.
Straight ahead is Tokyo's port. A long row of red gantry cranes gives it that "logistics Tokyo" look. And if you squint, there's Tokyo Skytree poking up behind the skyline. Sea, industry, and the city's landmark all in one frame — you don't get that at most seaside parks.
A big container ship slides slowly into port. A plane crosses behind it. The water glitters, and now and then a seabird flaps up. It's not a flashy, jaw-dropping vista — but it's a view with motion you can watch forever. That "motion" is exactly why I came here to film footage for a music video.
The lawn and the tropical trees | shade on a hot day
Sea and planes dominate the impression, but there's also a wide lawn toward the back. Pine trees dot it, and their shadows make just enough shade. A few families had spread out picnic sheets and were eating lunch.
What surprised me were the tropical-looking trees — cycads and coral trees — planted here and there. Maybe it's the sea breeze, but there's an almost Okinawan feel to it. Red flowers were in bloom, an odd brightness for the middle of Tokyo Bay's industrial zone.
To be honest, this day was seriously hot. The sun didn't feel like June at all, and Momiji was panting with her tongue out. There's not much shade on the sand or the lawn, so if you bring a dog in summer, early morning or late afternoon is by far the best. Bring plenty of water and shade gear for the dog. It's the same lesson my heat-sensitive Momiji taught me before — I wrote about it in our hydrangea walk at Sagamihara Asamizo Park.
Why Jonanjima | the day I came to film
Let me end with something a little personal. As I said at the top, the main reason for the day wasn't the walk — it was filming footage for a music video.
The truth is, I recently and quietly started a channel of background music for work and study. It's called "Lofi Hiroshi." The sound of waves, a sky full of planes, slow-moving sea views — those "watch-forever" scenes are what I came all the way to Jonanjima to capture.
I'll be honest. I just started, and almost no one is subscribed. Nobody's watching. When you post and post and get no response, it wears on you. Some nights I think, "What am I even doing?"
Which road I'll walk from here, I genuinely don't know yet. Past fifty, I'm still figuring it out. But more than anything, I find myself thinking, I just want to keep something going.
Results matter, of course. But lately a thought keeps coming back to me: maybe the happiest thing isn't the result, but the hours you lose yourself in something. Watching the sea, photographing planes, seeing Momiji romp on the sand — this stretch of this day felt exactly like that.
And the sea footage I shot that day? I edited it into a one-hour background-music video — the sound of Jonanjima's waves with the scenery drifting slowly by. Feel free to put it on while you work, study, or take a break.
If you ever feel like it, take a look at the Lofi Hiroshi channel. If even one person listens, that alone is enough.
Wrapping up
Jonanjima Seaside Park turned out to be a slightly greedy park where Haneda's planes, the big port ships, a man-made beach, and a dog walk all come together in one place.
Parking is 267 spaces and nearly empty on a weekday morning. Admission is free. Dogs can walk on-leash all the way onto the Tsubasa Beach sand, the planes photograph well even on a phone, and you can see Skytree across the bay. It's not flashy, but for a half day of wandering, it was honestly just right.
For a kid who loves planes. For a dog who loves the water's edge. Or for someone like me — who quietly started something and wants to stare at the sea alone for a while. If you're stuck on where to go, Jonanjima Seaside Park is a good call.
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▶ Sagamihara Asamizo Park Hydrangeas | Free Parking & Dog-Friendly Shade Walk
▶ Kannonzaki: A Seaside Walk with the Lighthouse and Our Shiba Inu
▶ Chigasaki Satoyama Park: Is It Dog-Friendly? Parking and a Free Hidden Spot