Stayed three three nights at the end of last October. Nice place, but
we wouldn't have been able to stay there in peak season as they do not
allow dogs then.

At that time of year the beach was virtually empty, and again, no dogs
allowed in peak season but we were fine in October. These pictures
taken on the beach there:
http://www.arcatapet.net/travel/images/newengland/pA260159.jpg
http://www.arcatapet.net/travel/images/newengland/pA260157.jpg

We used Beach Rose as a short base for visiting Lowell, Boston, and
Salem. Took the Duck Tour of Boston on the day after the Red Sox won
the series, which was an interesting time to be there!