Hydra.com Official site. (Up 6/28/19; posted 3/30/09)

Hydra.gr Even better than the offical thing. (Up 6/28/19; posted 9/21/14)

Hotel Sophia On the waterfront. Interesting rooms. (Have toured it, have not stayed there).. (Up 6/28/19; posted 9/9/12)

Hydroussa Hotel B class, well back of the waterfront. Stayed there in 2012, 2013. Is OK, but I think there are more interesting options.(Up 6/28/19; posted 4/16/11)

Declan McCullagh Photographer's Hydra images. (Up 9/21/14; posted 3/30/09)

Mediterranean Cruising Boating info, harbor details, etc. (Up 9/21/14; posted 1/13/02)

Hiking in Greece Various routes from Matt Barrett's great site. (Up 6/28/19; posted 9/9/12)

Wikiloc Another hiking site. (Up 6/28/19; posted 9/21/14)