Can be done in about 3/4 of a day. Took me 2.5 hours up and 1hr 45min down. There is very little coverage from the sun so wear sunscreen, a hat, and bring a water bottle. There is a creek that is safe to drink at about 2.5km with signs reminding you it's your last chance to fill up. Next water source is not till divide lake at 10km.
Toughest part was from the creek at 2.5km to about 4km. Unrelenting constant and somewhat steep grade so you don't get any breaks. No place to stop and rest with no cover from the sun other than small bushes. I never thought I would make it past 5km in the late July heat. I tried to get there early but by the time I was up to 5km at about 10:30am it must have already been about 25c in the shade. Coming back it was in the 30s. Somehow I made it and even felt good enough to keep going the additional 20min to the Cell Tower.
Although it's not the prettiest hike due to the 2003 fire leaving nothing to see but blackened tree trunks and stumps. You have constant views of Kelowna and Okanagan lake almost all the way up and down. Also divide lake was surprisingly peaceful and charming. There are a couple nice little camp sites with good picnic tables and a cabin for shelter from rain/critters. Also big plus is a very good modern outhouse with the proper odor venting and there was even toilet paper.
From Hwy97 near bridge go south on Pandosy which turns into Lakeshore. Keep following lakeshore to the right at the lights where the road starts going up hill. If you keep going straight it turns into chute lake rd and you have missed the turn off. Keep Following Kakeshore for a few km past Bertram Creek Park almost to the end of the road and take a left on Rimrock Rd which zigzags and turns into Timberline Rd. You will see the gate the top of the hill where Timberline does it's first switchback. You can park on the street or beside the gate (see picture of gate).
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