There is water on my window
Python - 192

a=10;g+=[0]*a
def f(k):
 if g[k]:g[k]=0;return" (%d,%d)"%(k/a,k%a)+f(k+a)+f(k-a)+f(k+(k%a&lt;9))+f(k-(k%a&gt;0))
 return''
m=max(map(f,range(100)),key=len)
print"Size: "+`len(m)/6`+" Coordinates:"+m


Input (Paste before the code):

g=[0,1,0,0,0,0,1,0,0,0,0,1,1,0,0,0,0,1,1,0,0,1,1,0,0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,1,1,0,0,0,1,0,0,0,0,1,1,0,0,0,1,0,0,0,0,0,0,1,1,0,1,0,0,0,0,0,0,1,1,0,1,0,0,0,0,0,0,0,0,0,0,0]


Thanks Calvin's Hobbies for suggested edits!