Planning around wedding exhaustion

For people who went on their honeymoon right after their wedding, how exhausted did you find yourself going into the honeymoon? I'm trying to figure out how much buffer we should build in at the beginning for decompressing after the celebrations. One day? Three days? Should we frontload the whole chill part or save it for the end and do exploration first?

I know it varies person to person, but I'd love to hear your anecdotal data. Thank you!