Vietnam: Secret Destination

It only took two hours to get there from Saigon; the journey, however, had to be as good as the destination. Where is it? I'm not going to tell you that...yet. Imagine sitting on a Hotel balcony, with the sun setting, a cool tropical breeze, and a Cuba Libre firmly ensconced in your hand. The drink cost less than a dollar, in fact the room only cost $7...and that was the expensive one. The cheaper ones at $4 were identical if you wanted to walk up two more floors. This seaside resort was only 5km from the main resort. I walked several blocks away and found a restaurant serving delicious meals for less than $2.
OK, the drinks were not included-what do you want for two dollars? Prawns, vegetables, rice, and one large "333" beer cost: $2.90. I forgot to mention the two hour trip from Saigon to
**** *** cost $7.