The perfect place to relax and enjoy sea, beach and wonderful thai food. Its located on the east-coast of koh chang, which is the calm side and you can't really reach some other places except the serenity resort and a restaurant by foot. Which is absolutely no problem as the food in the resort is great and we did enjoy every single dish we ordered.
The red sand beach is nice and well maintained (being raked every morning), you got to walk a bit into the sea to swim (especially at low tide), and should search for the best "lane" to get in inbetween of some stones, but this is not a problem even for children (they should wear bathingshoes anyways). Sunbeds are available on the beach as well as at the pool. The pool isnt huge but easily big enough the cool down and sufficientfor the only 9 (!!) rooms of the resort; it also offers a separated shallow childrens pool.
Breakfast is a'la carte, normal thai pricing (like the full menu) and very delicious and you can order it the whole day.
The owners (Simon from UK and his thai wife and family) and staff are extraordinary friendly, especially our 3yrs old son did enjoy their hospitality a lot (and i think they did have fun with him too ;)
The room is offering all you need: enough room, good bed, fridge, bathroom w/ shower, A/C and it's very clean.
All in all it was a great place to relax and enjoy thailand with the family at it's best!