11km, 8 hours later, we arrived at Dingboche (4360m) where we will acclimatise once again.

At this attitude, not much trees and plants can survive. If you look at the river on my left, it's colour is now darker due to a darker surrounding.

On my right, is a mini mountain whose peak is at 5100m. That is our acclimatization goal for tomorrow. We will trek up to that peak and then back down for the night. It will take about 2.5 hours to reach that peak.

If we made it up there tomorrow and still able to breathe normally and has a %SpO2 of 90% and above, we are 95% confident to make it to our secondary goal of Everest Base Camp (5364m), 3 days from now without the need of eating Diamox (a High Altitude Sickness preventive medicine with several side effects which I would like to avoid)

Current stats:
Resting pulse rate: 96bpm
Blood Oxygen, %SpO2: 86%
Body temperature: 36.4 degree
Atmospheric Pressure: 59600Pa (59.6% of Sea level)
Temperature in my room: 8.7 degree
Temperature outside: -8 degree

Generally healthy with slight headache and neck-ache. Have been sleeping for about 10-12 hours a day.

PS:
My Ncell 4G connection is now lost. For the next few days, I will depend on Everest Link instead. It is a Wi-Fi based connection so I will only have connection when I am nearby a router. The network is quite unstable at my current location.

PPS:
Thank u so much for all your well wishes. This trek is not as easy as I thought. It is no longer about fitness level only. Main issue is the lack of oxygen which I am certainly not adapted (our Bukit Timah 162m peak can't help much) After an hour of uphill trek today, my %SpO2 dropped to 61%. My finger nails appear slightly purple in colour. I had to stop, rest, breathe deeply for several minutes and observe the Oximeter reading to go back up to 90% before continuing the trek.

If you are thinking of doing this trek, invest in a good Oximeter. It really helps.

PPPS:
The trekking pole is really a life saver. I can now use my upper body strength and balancing ability to move upwards. It reduces stress on my legs significantly!!