The Selected Original Social Dances from the Caribbean

Bachata: Bachata comes from the Dominican Republic where the music also was born.
The early slow style from around late fifties from where everything started was danced only closed like the Bolero.
The basic steps moving within a small square is probably coming from the old cuban dance Danzon also danced in the Dominican Republic many years ago but in Bachata today danced more casual both in closed, semi closed and in open position depending on the dancers mood and the character of the music.
The Original Caribbean Bachata is characterized by the playful basis steps with syncopated steps and sequences with cool footwork but many dance schools worldwide do only teach the footwork part and furthermore they don't teach the original basic box-steps danced in a "square" from which you normaly do the footwork - The Original Bachata is more than just footwork, the dance also include different kind of turns and combinations of turns that together with the box-steps and the footwork makes different figures semilar to many other social dances like Cuban Son, Casino (Cuban Salsa), NY Mambo, LA Style etc.
This Original Bachata dance style is today danced all over the Caribbean in different paces from the slow romantic and close dance almost without turns to the faster and more playful dance with footwork, turns and rhythmic free style moves alternating between the close and the open position.
Original Bachata is danced with soft hip movements and a tap with or without a small "accent" with the hip on the 4th beat (1, 2, 3, tab/accent) - Can be danced with or without bounce (moving the body down in between the beats and up again on the beats by springs the legs a little).
It's a social dance style created by the Dominican Social Dancers over many years from around the late fifties and are still evolving and also lately spreading to the Western World.
Notice that most of the Bachata danced in the Western World is a dance school invented Bachata dance style and not the Original Bachata as we teach here.
The trend lately in US and West/North Europe is that more and more people discover the much more playful real Bachata and are starting to dance this style instead because the dance school invented Bachata Fusion Style is actually more Salsa, Tango and Sport Dance than Bachata.
Original Bachata is not as easy to learn as Fusion Bachata because it's not Salsa elements etc we use, Original Bachata has its own dance techniques which make Bachata much more fun to dance when you can dance it with both the footwork and with a nice flow in the combinations of the different turns.

Son: Is an old beautiful and elegant dance from Cuba danced all over the Caribbean. Son is the technical base for both Casino (Cuban Salsa) and X-body Salsa (Mambo and LA-Style).
Son is danced mostly in a close position adding short sequences of footwork and different Turns/Figures.
Son is danced "Contra Tiempo" which means that you dance on the beat 2, 3 and 4 instead of 1, 2 and 3 like Casino, LA-Style, Bolero etc.
Son should be danced very controled and elegant with soft hips and torso-movements.
A social dance style created by the Cuban Social Dancers over many years from around 1900 with Danzon as predecessor and have a Renaissance today both in Cuba and around the World.
Skillful Son Dancers are making this dance look easy to learn but it's not, it requires strong body control, but when you have learned to control your body, the steps and the footwork you will love Cuban Son for the rest of your life, furthermore this dance will make you a better and more elegant Salsa dancer because of your improved body control.

ChaChaChá: A Cuban dance from the beginning of the fiftiesChaChaChá is danced "Contra Tiempo" like Cuban Son with the ChaChaChá-steps starting on the 4th beat to the 1st beat in the following bar with a syncopation in between those 2 beats, then followed by 2 steps on the 2nd and 3th beat and the starting all over again: ChaChaChá, step, step, ChaChaChá, step, step, etc.
The ChaChaChá steps are originally coming from the cuban dance Mambo. The ChaChaChá is danced almost like Son but is more energitic because of the trible-steps ChaChaChá.
ChaChaChá is a social dance style original created for american turists because it was to difficult for the americans to learn the Cuban Son steps with the break on the 1st beat in every bar.

Bolero: Original a Cuban dance, very romantic danced in a close position and also danced all over the Caribbean like the Cuban Son. The Dominicans have their own just a little different variation with Basic steps inspired by one of the very old Cuban Danzon steps. Bolero, both the Cuban and the Dominican, is relatively simple to learn to dance and as mentioned very cosy.
The Dominican Bolero basic steps is also the basic steps for the Original Dominican Bachata but in Bachata added a tap on the fourth step, we will show you. 
The Caribbean Bolero music is slow and very beautiful, actually is the term Bolero the Caribbean word for a Balade.