Arrived at the tail head ~11:30am. Overflowing cars were parked along the road. At least 150 cars in 3 lots. Paid $10/pp camping fee. Started the gradual but nonstop zigzag to 6km mark. Took the right fork towards 2 small lakes and then went down the last half km towards Garibaldi Lake. The trail passes a bridge over the draining creek, then along the waterfront. Waterproof boots and hiking poles are useful. A real traffic jam here. Most camping sites were taken by ~3pm. Settled at #19 partly in the melting snow, within eye shots of 2 other sites. There were people everywhere, in the water, along the shore, in and outside of food shelter. Felt like stepped into a crowded city park, just an absolutely beautiful park: deep turquoise water, Sphinx glacier hanging low across the lake. Managed to find a more secluded cove to swim for just 2 minutes, after hesitating in the cold water for 10x longer. As the sun went down, the day trippers departed, campers prepared dinner admiring the ever redder mountains. 3 rubber boats rowed into the lake with fishing gears. Mosquitoes became noticeable.
Got up by 7am to take a sunrise photo. Packed and headed towards Panorama Ridge ~8am. Back traced ~0.5km, going up in the forest for ~30 min. Dumped the backpacks at the first junction with the Black Tusk trail in a heather/huckleberry meadow (not much flowers, no berries yet). 0.5km later, took the right fork, going east through some flowering slopes. Trail is flat, exposed, tiny falling waterfalls to the left, two small lakes to the right. 
~1 hour later, reached the junction to Helm Creek. Took the right fork along a ridge, going south, up and up. Part snow, part rock. Grand 360° view: to the north Helm Creek and more snowy peaks in the distance, to the west Tantalus Range, Black Tusk in between. Reached the very top by 11am. The lake below is absolutely stunning, rendering everyone speechless. Only two more people within miles. Wandered along the top ridge. Had some snack among little flowers and plants clinging to the rocky ridge. Back via Taylor Meadow. Not much flowers. Probably still too early. Had lunch. Reached car ~3:30pm.
Direction: Hwy #99 37 km north of Squamish or 19 km south of Whistler (just south of a dam). Signs for the access is posted on the road. Then ~2km to the 3 big parking lots.
