I have tried and I can do it if I really have to. It's just totally pointless and unnecessary (unless somehow you screw up the gas planning and end up back on the surface with empty tanks). And if you have extra gear, like a camera housing with strobe arms or a stage tank, then surface swimming in really heavy kelp makes entanglement tough to avoid regardless of technique.
Yes, a little bit. It's certainly a lot easier to kelp crawl in minimalist freediving gear.
Kelp is an issue once it becomes thick enough. Seriously, go look at Whaler's Cove right now. The surface kelp is as thick as I've ever seen it (which is good news for the ecosystem). Only a real masochist would try to kelp crawl on the surface any significant distance through that mess. Everyone who has been diving there the last few days just goes under the kelp.
You said “can’t”, I say it’s a non issue.
You really oughta disclose that you’re coming at this from a GUE tech diving perspective. There’s a big difference between diving to Montana using doubles, scooters, and multiple deco bottles compared to diving a single rental al80 out to middle reef at Lobos.
I will repeat, I don’t dive a snorkel either but the universe will not collapse into a singularity just cause someone uses a snorkel to kelp crawl out beyond doggie so they can maximize bottom time at middle reef.
We should be encouraging and / or mentoring these divers not telling them they’re doing it wrong. (Referencing the masochist , screw up, unnecessary language )