183 reviews rated Designer Cottage B&B with an average score of 9.3/10. It may also be worth looking into the Colombo Lodge Christchurch, which received a rating of 9.0/10 from 189 reviews. The Old Baker's Cottage could also be a good option, with a score of 8.8/10 from 12 reviews.
A good hotel close to Christchurch Casino is Breakfree On Cashel (rated 7.8/10 from 4,062 reviews).
Hotel Give is the most recommended hotel near Mona Vale on HotelsCombined (scoring 8.5 over 2,270 reviews).