La Trinidad is known as "Sik'u' " in the Itza language. It is located southeast of Motul de San José on the northern shore of Lake Petén Itzá. The site is located at the closest point to Motul on the lake shore and it may have served as a Maya port. The site has more than 115 structures located in an area of , and the site may actually cover and contain about 150 structures. The site had a long occupational history stretching right through from the Middle Preclassic to the Early Postclassic, with two phases of greater activity in the Early Classic around AD 350 and in the Late Classic from AD 650–830. The Terminal Classic occupation was largely limited to the lake shore but was fairly dense. The monumental architecture, port and the ballcourt all identify La Trinidad de Nosotros as an important secondary centre within the Motul de San José polity. Additionally, the site was situated close to a source of chert and probably manufactured chert tools.