I need some California ale yeast, though my local home brew store doesn't stock it and I can't find an online UK seller who has it in stock either.
Can anyone recommend a suitable alternative?
Wyeast 1056, or White Labs 001 or
Safale US 05 all the same strain.
Another alternative might be Wyeast 1272.
It you're looking for a neutral yeast substitute you can use Nottingham Ale and ferment at lower temps.