Bangladesh has many beautiful places. Ratargul, Sylhet is one of the beautiful place.Another place is "bisnakandi, Sylhet bangladesh". If you want to go there you need only 3day and  2 night tour. Per person maxmum 4000 tk. Dhaka to Sylhet by bus or car only takes 6/7 hours. If you want low price night stay, you can choose from many apartment hotels beside the sylhet Airport. They are well established and has many well opportunities. These apartments are quite wide and many people can stay in one apartment easily. There are many living rooms in these houses too. One flat can keep about 3 families easily. These flats are best when you visit sylhet in a group, friends and families. 

From sylhet it takes only about half an hour to reach Ratargul by road. You can spend 2-3 there. There is a boat service to take you to roam around the calm waters. 

Again from syhet to bisnakandi takes 3-4 hours. Bisnakandi is another wonder of sylhet. You should keep a whole day to spend there. There is an amazing waterfall at the middle of 7 hills. You will need to go there crossing a bed of stones and pebbles.