did the hike on July 12, cloudy day, started at 11:45 am, did it slow intentionally hoping for the sun to come out and peaks more visible but the sun didn’t come out till after 4 pm. 
lots of wildflowers blooming, avalanche lilies started to wither but some batches of them still blooming as of that day. The red paintbrush flowers were also in abundance, in a week or so, lupines might bloom more in abundance. 
overall, even with bugs present and a rough bumpy dusty ride, it was an amazing experience. Camped at mowich lake campground after the day hike. For more pics follow me on Instagram “withnamd”

Started this hike at 11:45 am, and intentionally slowed it down hoping for some sun, but there wasn’t any sun almost all day except after 4 pm. Due to this, could not see the peaks clearly but the wildflowers were amazing. I used AllTrails navigation for spray park trail to mount pleasant and the last bit took a digression from the main trail towards mount pleasant climb, did not do this climb as it was cloudy but saw three white mountain goats on top.
Mosquitoes bothered us only when we paused for a while, we wore full clothes and sprayed bug spray all over our clothes but they got smart and started biting me over my head on the scalp. Then I wore hat haha. 
Camped the night there in mowich lake campground, and it was a cold night (low 30s). 
Avalanche lilies have almost withered and only a few spots had them in abundance, but a fresh wave of paintbrush is about to start and lupines would probably take a week or more to be in full bloom. For more trail pictures, follow me on insta “withnamd”. 

Spray park 

Wonderful display of glacier lilies and paintbrush and Heather. Not too busy Monday morning.

Trail to echo rock and observation rock

We took the spur trail headed up and towards the peaks. Stopped at the base of flett glacier mostly. I climbed a little higher to get a view of the route to the left, around the summit blocks but it appeared to be a couple of more hours yet, have to save for another day or over night. There were a couple of nice protected camp sites in this area on patches of dirt with fresh water melting off of the glacier, not bad! 

Knapsack pass back to Mowich

Lovely, steep and cross country. Had to cross some snowfields at pitch, poles and or spikes and axe are helpful but the risk is low, duration brief, though the pitch is steep. Beautiful trail traversing over two high passes with gorgeous rocky mountainous views and summer greenery. It was a delight. Very steep up and over the passes, very steep down to the car and direct. For me being a confident trail runner it was wonderful but for my beginner hiking partner it was slow moving through the more advanced terrain.

more advanced and primitive route requiring more experience, but overall nothing too crazy. Steep trail down with rocks and roots and deep trail trenches on steep exposed terrain.

It was a perfect day to hike to Spray Park. We left Seattle at 5:30, and we were on the trail at 7:30. The first two miles are easy going, and somewhat downhill. After the split with the falls, it’s uphill all the way until the meadow. We stopped at the rock cairn, near a snowfield. The mosquitoes were pretty bad at the top if you stopped too long, so we turned around pretty quickly. The views of Rainier/Tahoma were spectacular, especially with all of the wildflowers in bloom. Countless avalanche lilies, paintbrush, beargrass, and so many others. Get here early, and you’ll have the trail to yourself like we did until the way back down.

Stats:
   Duration: 7-1/2 hours
   Distance: 13.3 miles
   Elevation Gain: 2835 feet
   Weather: Sunny, light winds, low 80s
   Takeaway: OMG, the bugs; flower season will have multiple waves - I'll  be back

We participated in the Mt Rainier "blood drive" and fed the bugs over the course of the day. It was not too bad in the woods, and earlier in the day, but in the meadows late day, it was definitely a swarm scene. We saw quite a number of folks heading up late in the day with exposed arms and legs... I have to start my report with "The bugs were very bad" :) I did not have any exposed skin, and had bug spray on my clothes, but still have bites on my hands, elbows and ankles. The bugs got creative and went for my eyelids... under my sunglasses! :)

Now that that is out of the way... 

The drive out to Mowich Lake is pretty well graded and we saw a good mix of cars...did not appear to be a problem for anyone. No potholes to speak of. But it is VERY dusty, and we were blinded by sun and dust numerous times on the descent late in the day. Had to take is slower on the return. I like this entrance... easily the closest to my house, and generally less busy. Mowich Lake is beautiful - next time we will hang out with our hammocks and pack rafts.

The "Spray Park" trail from Mowich Lake to treeline has lots of stream crossings, a good lookout at Eagle Cliff with a unique view of the mountain, and of course Spray Falls (no picture here; all my waterfall pictures are of streams crossing the trail). Lots of water, big trees and interest on this part of the trail. It is up-and-down in this section; make sure you have some gas for the return, as the "up" part of the trail seemed more significant on the return! After the junction to Spray Falls lookup, the trail ascends fairly steeply via a series of switchback to treeline, and then into Spray Park. 

The meadows are, it goes without saying, stunning with lots of flowers, mostly notably Magenta Paintbrush and the most profuse concentration of Washington Lilies that I have ever seen. Breathtaking. The flower season here must regenerate in waves - my pictures from August last year have different species, and concentrations in different places. One spot I remember from last year does not even have any buds yet, most of the area still being under snow. Not that much Lupine - yet.

We made our way to the high point of the trail at the boundary of Spray and Seattle Parks (will return for the loop trail which keeps going). There are snowfields to cross, but all doable without any special equipment. The trail is somewhat steeper as you approach the high point. A large (multi-foot) cairn marks (for me) a boot-path trail off to the right (uphill) towards Inspiration and Echo Rocks. To me, this is the most beautiful part of the hike, with a high-alpine (otherworldly) environment of rock, succulents, heather and flowers (mainly Red Paintbrush and Subalpine Daisies right now). We did not have the gear to reach Echo Rock (snowfields/glacier) but one can go fairly far without crossing snow, and this part of the hike will make you want to linger and relax. If you see folks with ski equipment on the trail, this is the area where many of them are headed. The only caveat of course - one needs to stick to the boot-path to preserve the beauty and protect the fragility of this area.

What I remember about the descent is basically two things: 1) The bugs - whoa; 2) That "UP-and-down" trail below treeline back to Mowich Lake. I think we all gauge our "gas" by anticipating the trail. I forgot how much "up" there is on the return. My buddy comments when taking that trail in the outbound direction that it seemed "pretty easy" for a trail heading up above treeline... that is the "down" part that becomes "up" later ;)

A great day, and a different experience than Sunrise or Paradise, with a more remote feel and different perspectives of the mountain.