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T. WhiteSurface of another planet  Sucess!
Date Climbed: Jul 8, 2010

T. White

The Observatory Trail is superlative... remoteness, ruggedness, altitude, prominence... all from a walk-up. Altitude sickness was an issue when starting the day in Hilo, though... I got a little loopy and that last mile was neverending.

The caldera is insane, but it's hard to take in the view when insects are dive-bombing your face thanks to all the "offerings" people have placed at the summit cairn!

Saw nobody else the entire day. Glorious. Can easily see why the ancient Hawaiians considered it a supernatural realm.
Posted Nov 5, 2017 8:48 pm

RedwicGreat summit view but..  Sucess!
Date Climbed: May 22, 2017


... I did not care for the jagged lava rocks. I was able to figure out a nice shortcut on the ascent but opted to take the full Observatory Trail route during the descent. The caldera view was awesome. I had the entire trek virtually all to myself, only seeing one spider, one fly, and... much later... one hiker, during the climb. My wife and I celebrated our Hawaii trip later that evening with a great luau in Kona.
Posted May 24, 2017 12:53 am

MaverickMerkvia Observatory Trail  Sucess!
Date Climbed: Sep 5, 2016


Living at sea level has made me soft! Incredible view of the caldera. Wrecked havoc on my boots.
Posted Sep 6, 2016 3:42 pm

setrentOB Trail  Sucess!
Date Climbed: Sep 1, 2015
Neat hike, bring a lot of water!
Posted Jul 6, 2016 11:35 am

McCannsterAnother world  Sucess!
Date Climbed: Apr 16, 2016


Hiked with Alika and Nicole via the Ob Trail. Such a spectacular place. Summit was outstanding. Overnighted at the summit cabin, which is on the opposite side of the caldera from the actual summit. Was a treat to eat dinner overlooking the crater.
Posted Apr 18, 2016 10:44 am

strudolyubovMauna Loa Trail and Observatory Trail runs  Sucess!
Date Climbed: Dec 23, 2015


23/12/2015: Solo trail run from Mouna Loa Road 3.5 miles below the trailhead (due to the fallen tree blocking the road). Came to within a mile of the intersection with Observatory Trail and turned around due to weather. 37 miles roundtrip, 7,000' elevation gain. Total time: 11h35m, moving time 09h56m. Interesting lava running, great views!

25/12/2015: Solo trail run to the summit and back on Observatory Trail. 13.3 miles roundtrip, 2,800' elevation gain, total time: 4h10m. Beautiful weather, incredible summit views.
Posted Apr 17, 2016 8:16 pm

gimpilatorFun lava hike from Observatory trail  Sucess!
Date Climbed: Jan 30, 2016


We also went to the top of the following: Kilauea, Pu'upua'i, Mauna Ulu, Puu Huluhulu, Pu'uwaiau, Puu Hau Kea, Mauna Kea, Puu Kea, Pu'uhau'oki, Puu Poliahu, Puu Kalepeamoa, Kilohana.

For pictures and videos see the full trip report.
Posted Mar 25, 2016 3:07 pm

bechttObservatory Trail  Sucess!
Date Climbed: Oct 23, 2015


Hiked up with Caren. She decided to forgo the summit about 250' and 1.5 miles below but still got great views of the caldera. We made it down before the rain storm hit.
Posted Oct 24, 2015 2:57 am

Bob BurdObservatory Trail  Sucess!
Date Climbed: Jun 4, 2014

Bob Burd

Standard route up the Observatory Trail, then visited 1949 Cone and 1940 Cone, then across the crater. Trip Report.
Posted Jun 13, 2014 12:50 am

Fletchobservatory trail  Sucess!
Date Climbed: Jul 24, 2012


pretty good little hike when you're hungover...
Posted Dec 28, 2012 5:03 pm

utclimberObservatory Trail  Sucess!
Date Climbed: Nov 13, 2012
Very unique place, with an unbelievably large crater. Round trip time was 5 hours, 10 minutes from the car.
Posted Dec 3, 2012 10:57 pm

MikeyBObservatory Trail  Sucess!
Date Climbed: Jul 8, 2011


Very cool hike over lots of old lava flows. Getting above the clouds was a sureal experience. Had the mountain and route to my self.
Posted Aug 17, 2011 11:21 pm

Dennis PoulinObservatory Trail  Sucess!
Date Climbed: Dec 6, 2010

Dennis Poulin

Nice hike. I was alone on the mountain today. It took longer than I thought it would. Lots of rock hopping. Beautiful day.
Posted Dec 18, 2010 8:01 pm

LakesideHikerObservatory Trail
Date Climbed: Jun 1, 1979


Left Kona on a Friday night and camped at the Observation Trailhead. Went to the top the next day. Altitude sickness was the order of the day and night. Great view and hike.
Posted Jan 31, 2010 4:46 pm

Jesus MalverdeObservatory Trail  Sucess!
Date Climbed: Dec 16, 2009

Jesus Malverde

An ono pupu for the the peak bagging g-spot of your soul. Recommend sleeping higher up to acclimatize for this one. I slept at the radio transmitter towers at 8900 feet (more privacy and off the road). Taking 4 liters of water is recommended as well. 7 hours 20 minutes round trip in a bizarre and very interesting place. Enjoy!
Posted Dec 17, 2009 11:07 am

boisedocobservatory trail  Sucess!
Date Climbed: Mar 27, 2009


hiked up the lava fields from the Observatory. Pretty barren. Hiked on snow for the last 2.5 miles about 13000 feet, resulting in a sunburn on the back of the knees that I had not expected. Coming up from sea level in one day, this is a good way to see if you are prone to mountain sickness
Posted Mar 31, 2009 10:58 pm

farrisglCamped just below the summit  Sucess!
Date Climbed: Aug 10, 1992


Took the observation trail, camping just below the summit. What a spectacular night view of the star. Appeared so close you could almost touch them. Received light snow in the middle of the night as well. I need to go back some day in the near future and climb via the Mauna Loa Trail and again camp out on or near the summit.
I highly recommend this mountain.
Posted Mar 21, 2009 2:46 pm

NiederbayerApril 2000 - Mauna Loa Trail


made it to rim of caldera - feels like walking on Mars - no vegetation, no birds or insects, just rocks and no other sound except the wind - unfortunately clouds blocked views
Posted Feb 23, 2007 7:53 pm

Dan the JonesNever made it
Date Climbed: Jan 23, 2005

Dan the Jones

What a geologic feast. Had to turn back due to time restrictions, but want to go again.
Posted Sep 19, 2006 3:41 am

NanitaDTrail from the weather observatory  Sucess!
Date Climbed: Feb 22, 1998


Amazing, spectacular and unusual peak. My new tennis shoes were shredded on the sides from the sharp volcanic rocks.

Posted Apr 1, 2006 1:44 pm

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