Yes fully explored the area. Once you find silverfish, the end portal is usually right there. I thought for sure silverfish are only at the very end. In fact I have never seen silverfish other than the end portal. Maybe I am wrong about that. In place of the end was a water fountain. Silver fish blocks completely surrounded this fountain. The ender pearl keeps bringing us directly to this fountain.
Oh well we have plenty of other maps. Just a huge disappointment since we found the nether, a village, potatoes, and watermelon all in the same night. Thought for sure we would at least find the end portal. Well we found it, but it is just not there. Its really the first time I have ever seen this happen out of all the worlds I have been in.