How good park Wi-Fi is may well depend on how good you are.
True story.. Last night I "Lost connection" well this Am I did some investigation
Ping: Mail.yahoo.com (No response DNS error)
PING: 8.8.8.8 (one of Googles DNS servers) (NO response) Since this was a direct IP address not a name it did not querry a DNS (Domain Name Server)
NOTE: FOr those who do not know, the DNS is basically a phone book.
PING 8.8.4.4. (Other Google DNS Good and fast response
Entered my Router setup (I re-route park wi-fi) changed the DNS settings and you are reading this so somethign worked .