There are no scheduled buses to Winter/Summerland after BB closes for the day. But I am told (by bus drivers, but we can probably trust them on this one!) that the DAK buses will stop at BB for Winter/Summerland upon request. Wouldn't surprise if a bus to AKL, CS, or ASSports would do so as well, but you'd need to ask.
Finally, if the weather is nice, I can recommend the path from CS to BB. Pleasant and easy to follow.
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