intrusion attempt - port scan

This week we have noticed that there have been two intrusion attempts  - port scans blocked by NAV.  The latest was today from 205.171.3.65

 

We are in an rv park where we use wi-fi that has a secure log in; however there are many people online.  Does this mean someone within the park is trying to get "into" my computer?  I did use the ethernet the other day when I had to do a lengthy update from microsoft and did not want to take a chance with the wi-fi going down.  Traffic description was listed as UDP, 53