On the forth day of the meeting, the importance of delimitation of Exclusive Economic Zone and continental shelf in Territorial sea EEZ was presented in parallel with the view of its impact and because both EEZ and shelf boundaries are both to be delimited by the agreement and by the basis of international law in order to achieve the equitability of ocean governance. In a consequence, there is current tendency in the delimitation in single maritime boundary. There are some crucial cases in the Caribbean region concerning the delimitation process that were taken for consideration and discussion e.g. Guyana-Suriname Arbitration, Barbados-Trinidad Arbitration. The rules and competing factors were examined and widely discussed. The topic was concluded that the delimitation may be varied only if clearly justified by a special relevant circumstance.