picnic vs walk in the park

picnic

noun
  • An easy or pleasant task. 

  • An informal social gathering, usually in a natural outdoor setting, to which the participants bring their own food and drink. 

  • The meal eaten at such a gathering. 

  • A cut of pork from the shoulder area (above the front leg) of a pig. 

verb
  • To take part in a picnic. 

walk in the park

noun
  • Something easy or pleasant. 

  • Used other than figuratively or idiomatically: A recreational walk in a park. 

How often have the words picnic and walk in the park occurred in a corpus of books? (source: Google Ngram Viewer )