Example FTP session: 

ftp ftp.pmel.noaa.gov
Name: anonymous
331 Guest login ok, send ident as password.
Password: your  name
230 Guest login ok, access restrictions apply.
ftp> cd tsunami/database/t19991206vanuatu/rawdata/nos_tidegauge
ftp> binary
     Type set to I.
ftp> mget *.gz

...

ftp> quit