"My buddy Paul and I completed the Issy Alps 50K Endurance Challenge! AND I finally got to stick a Peakery sticker on the infamous mailbox atop Mailbox Peak! The route is about 33 miles long and includes about 13,000' of elevation gain. It involves climbing Mailbox Peak, Mount Teneriffe, Mount Si (to haystack basin), and Little Si, connecting them all on foot. Although these are actually Cascade peaks, there are 100K and 100 Mile versions of the challenge that extend into the Issaquah Alps range, boasting much more elevation gain." — Al-Rashid • Sep 7, 2019

"Hiked to Teneriffe / Kamikaze Falls and then to the summit via the Kamikaze trail. This trail starts off with a gradual incline and then transitions to switchbacks to the Falls. The switchbacks then transition to what is essentially straight up the ridge to the summit. We encountered ice and snow during the last part of the hike up to the summit. We put on our micro spikes and we were able to hike with pretty good traction. It would be difficult to make it to the summit without microspikes or cramptons. It was very cold with a strong wind on the summit so we snapped a few pictures and started our descent after a few minutes on the summit. Coming down requires some careful foot work given the steepness of the trail. The trail is well all the way to the summit with either hatchet marks on trees along the way or well established footprints in the snow. Overall, a great hike and excellent workout. " — joeerickson • Jan 19, 2019

"This hike is a tale of two trails. Always have wanted to check out Mount Teneriffe but have been leery of the crowds. An early start today seemed like a good day to give it a go. Pretty awesome paved parking lot, very Mailbox Peak-like. Decided to take the new trail up, which is in very good shape. A dusting of snow appeared at about 3 miles and by 4 1/2 miles in, the snow was pretty deep. Someone had been up in snowshoes sometime last week, which helped a bit, but with the recent snow, the tracks were mostly filled in and without snowshoes, the last 2 miles were pretty slow going with no real boot path and no snowshoes. Only saw two people the whole way up, who were heading down to try and pick up the Mount Si connector trail after summiting Teneriffe the "old" way. Emerging from the woods, deep snow changed to icy snow for the last few hundred feet to the summit. Very fortunate to be above the clouds and in the sun today, and with no wind the summit was very nice with nice views. Gaining 3,800 feet over 6 3/4 miles makes this a moderate, if long, hike. Decided to do the loop and take the traditional route down which had less snow, but was a bit more treacherous d..." — BryHong8 • Feb 10, 2018

"Rained the whole way up and then started freezing at the saddle. By the time we reached the boot path it was snowing pretty hard. So we did a Chevy Chase at the top in a snowy cloud and heading down the path toward the falls. It was a slip-n-slide the whole way until the falls. Yet, still a great day to get out during the week and hike!" — davomaso • Jun 16, 2016

"I climbed up to Mt Teneriffe along the SW ridge from Kamikaze falls. This trail is very steep! There are a few level spots with large rocks where you could stop for a break or lunch, and you have intermittent views of Mt Washington and Mailbox to the south and southeast. Microspikes and poles or a good stick (my preference) are necessary near the top because of the steepness. The summit is a long, narrow flat area with an amazing 360 degree view. Quite rewarding once you get there. 3840 ft gain, 8.5 miles, 5:45 hrs." — markgarrett • Mar 11, 2016

"My business trip to NYC got cancelled due to the NE blizzard, so I "had" to torture myself with a hike. Hadn't done Teneriffe since 04/12, so I thought I would do it again in the winter time. Snow could be found above 3,000'. Some places were steeper than I remember. Once you're above the sea of clouds above 4,500', you can pretty much see everything! Rainier, Baker, Glacier, Shuksan were all out. No cornices this time and very little spaces you would find safe at the summit, so be careful when you go up there! Here's a shot of a friend I ran into, taken over the edge of a ridge right below the summit. " — aimk13 • Feb 10, 2013

"Long warm trip. 2 hikes in one, nice stroll to the falls, which have no water running down them, and the after falls workout to the top. After the falls is much like Mailbox Peak. " — puddlepirate • Sep 27, 2012

"Left TH at 5:25 with a 27 lb pack, summitted 8:15 with ten minute photo break, back to TH at 10:45. Sloppy snow right after you hit the ridge, traction not particularly helpful. Clear evening, no exciting sunset though." — diana • May 2, 2012

"Most people were there for Kamikaze Falls, but I quickly continued myself up from there for the summit. However, it took me nearly 2 hours to get to the summit after the falls. There was a big cornice up on the summit, so be careful not to step far out. Used my trekking poles the entire time after the falls. Didn't use microspikes or ice axe (forgot). Cloudy day, but it was a great hike! " — aimk13 • Apr 28, 2012

"From the "School Bus Turn Around", it's about a mile up Mt Teneriffe Road-Trail to an obvious junction to the right. This old logging road winds around a few creek beds and past two bike trails and ends at a sign pointing to Teneriffe Falls (aka Kamikaze falls). The hike to the falls is pretty mellow and even in mid-October with little recent rainfall there is enough water to make it an impressive sight. From here the trail gets steep (we're talking over 2500' in less than 1.5 miles), rocky, and very loose in some places. For an unofficial trail it is surprisingly easy to follow, with flags marking the few vague areas near the top. Around half way from the falls to summit is a clearing along some rocky ground, and from there I was completely under canopy until emerging a few hundred feet from the top. At summit i found a lone husky with a collar, but wasn't able to approach close enough to read her tags. Worried that her owner may have taken a fall, I spent about an hour scrambling around the edges and yelling for anyone who could hear. With an hour an a half until sunset, I abandoned the search and hurried down to check the parking area for cars and possibly notify someone. To ..." — Jeb • Oct 8, 2011