The Porteau Cove overpass parking lot is very spacious and the trailhead is right in the lot. The first 3km or so of trail is a logging road which we drove up using a 2WD pickup - high clearance is necessary and there are steep sections of road with a loose surface and some water damage. Driving up reduced the hike by about 2 hours. Signage is excellent - it would be difficult to get off-trail.
The trail is essentially snow-free until Deeks Lake. Lots of water currently available as the trail parallels Deeks Creek for much of the route past the logging road. The lake is beginning to thaw - there is open water near some shoreline but it is still mostly covered in ice. Snow seems to be deeper past the lake but appears (judging by footsteps seen from a distance with binoculars) to be consolidated.
Doing my walrus/orca impression at Deeks Lake. It's just a pity there weren't any penguins to catch on the ice.
I'm going to use this as my May swim, as it was much more enjoyable than Okanagan Lake.