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Japan Japan scenic viewpoint

Tenkaihō

You can see 94 km from here, looking south-west.

Calculating the panorama…

Drag to turn around. The relief is drawn 2.2 times taller so the ridges can be read; far ridges are paler, as in the real air.

The view

Up to 94 km away.

Calculated on the relief one degree at a time, up to 250 km, with the curvature of the Earth and the refraction of the air: what stands above the horizon from here.

66out of 100

Our own rating, from the relief and the climate only: open horizon (35 points), how far you see (25), sea and named peaks in view (20) and clear months (20).

  • 94 kmFarthest ridgelooking south-west
  • 95%Open horizonof the circle where the horizon is below your eyes
  • 3%Seaof the circle where the horizon is the sea
  • 14Peaks in viewnamed summits that rise above the relief in front
  • 155 mAltitudeabove the sea, at the highest point of the viewpoint

The 14 peaks you can name from here

From west to east as you turn around: height, distance and direction. Each one links to its guide on Peakyas, our mountain atlas.

Mount Yumihari364 m · 5.4 km · northEboshi-dake568 m · 7.6 km · north-eastMount Hatten707 m · 14 km · north-eastKakui Dake670 m · 11 km · north-eastKanayama Dake352 m · 20 km · eastMount Ondake315 m · 95 km · south-westTetegadake460 m · 106 km · south-westMount Shijiki347 m · 30 km · westMount Yasuman530 m · 31 km · north-westMount Atago259 m · 8.2 km · north

From the relief only: buildings, trees and haze are not in the model. On a hazy day you see much less; 250 km is the limit of our calculation.

The sun

The best sunsets are from October to November.

When the sun really disappears from this viewpoint — behind the relief or into the sea — and in which direction, on the 15th of each month, in local time.

  1. Jansouth-west4 min before the sea-level sunset27%
  2. Febwest4 min before the sea-level sunset29%
  3. Marwest2 min before the sea-level sunset32%
  4. Aprwest2 min before the sea-level sunset34%
  5. Maynorth-west6 min before the sea-level sunset31%
  6. Junnorth-west6 min before the sea-level sunset20%
  7. Julnorth-west4 min before the sea-level sunset26%
  8. Augwest4 min before the sea-level sunset35%
  9. Sepwest2 min before the sea-level sunset33%
  10. Octwest2 min before the sea-level sunset41%
  11. Novwest4 min before the sea-level sunset39%
  12. Decsouth-west4 min before the sea-level sunset31%
  • Time: when the sun goes behind the horizon you see from here.
  • Minutes: how much earlier the relief hides the sun.
  • %: share of clear sky that month (NASA, 2001–2020).

The highlighted months are the clearest. Golden hour starts about an hour before.

The place

Tenkaihō.

Scenic viewpoint in Japan

Tenkaihō is a scenic viewpoint in Japan, 155 m above the sea.

On a clear day the farthest ridge you can see is 94 km away, looking south-west.

14 named peaks rise above the relief in front; the most prominent is Mount Yasuman (530 m), 31 km away.

The horizon is open, below your eyes, over 95% of the circle.

The skies are clearest from October to November.

Observation Deck at Tenkaiho
At by At · Public domain

Get there and stay

Plan the visit

A guided tour, a bed nearby, a car.

Some links above are affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes what the data on this page says.

From above

The viewpoint and its surroundings.

The satellite image of the 6 × 6 km around the viewpoint, with what OpenStreetMap shows nearby.

Tenkaihō seen from above (Sentinel-2)
Seen from above: Sentinel-2 cloudless 2016 (EOX, CC BY 4.0), 6 × 6 km, north up. Points © OpenStreetMap contributors.

Around, in OpenStreetMap

  • 10other viewpoints within 5 km赤崎岳, 船越展望所 いしだけ幼稚園, 展海峰 and 7 more
  • 17named peaks within 5 km赤崎岳, 天神山, 石岳 and 14 more
  • 9shelters and huts within 5 km
  • 27car parks within 3 km
  • 1visitor centres within 5 km佐世保観光情報センター
  • 3restaurants and cafés within 3 km
  • 2campsites within 10 kmオートフォレストナキリ
  • 23places to stay within 10 km九十九島観光ホテル, 九十九島温泉花みずSASPA, Navy Gateway Inns & Suites and 20 more
  • cable car and funicular stations within 5 km
  • marked trails within 3 km

Counted in OpenStreetMap, the map anyone can edit. A low number may just mean nobody has mapped it yet.

In our other atlases

What you see from Tenkaihō, and what is near.

Everything around this viewpoint — mountains, water, forests, birds, caves and the night sky — in the family's atlases.

Peakyas56 mountains within 25 km
Eboshi-dake568 m · 7.7 kmKakui Dake670 m · 12 kmMount Hatten707 m · 14 kmMount Kunimi (Nagasaki)776 m · 16 kmMount Eboshi596 m · 18 kmMount Kurokami516 m · 22 kmMount Seira618 m · 22 kmMount Kokuzō608 m · 22 km
Coastya2 beaches within 10 km
Sakibe-ura · 3.9 kmSukuino Ura · 6.9 km
Forestyas1 forests and trees within 15 km
Sakai National Park Kujukushima Zoo & Botanical Garden · 2.1 km

Figures from the sister sites' databases (Wikidata, HydroATLAS, GeoNames, OpenStreetMap, GBIF). Links open when each site is online.

Photographs

The view, as people saw it.

Other viewpoints nearby.

Tenkaihō

Japan

  • 66Viewyas Score
  • 94 kmFarthest ridge
  • 14Peaks in view
  • 155 mAltitude

Mount Unzen

Japan · 70 km

  • 86Viewyas Score
  • 217 kmFarthest ridge
  • 130Peaks in view
  • 1,446 mAltitude

See the guide

Sakurajima

Japan · 195 km

  • 86Viewyas Score
  • 145 kmFarthest ridge
  • 25Peaks in view
  • 1,045 mAltitude

See the guide

Beppu Tower

Japan · 169 km

  • 74Viewyas Score
  • 158 kmFarthest ridge
  • 26Peaks in view
  • 6 mAltitude

See the guide

Where these figures come from

Name and typeWikidata (Q11465727) · CC0
SunJ. Meeus, Astronomical Algorithms
Peaks in viewPeakyas (Wikidata, CC0)
Panorama and altitudeCopernicus DEM GLO-90 / GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA
CloudsNASA POWER (CERES SYN1deg, 2001–2020; MERRA-2)
What is around© OpenStreetMap contributors · ODbL
ImagesEOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons
Sister atlasesPeakyas, Islandyas, Coastya, Forestyas

Every figure is an average, an estimate or a count from a public dataset. Licences and methods: data sources.

The family

Do you prefer beaches, lakes, mountains, waterfalls, islands, rivers, canyons, caves, dark skies, viewpoints, birdwatching or forests?

Same idea, other landscapes: field atlases built on open data, in seven languages.