The City of Puerto Vallarta is the government seat of the Municipality of Puerto Vallarta which comprises the city as well as population centers outside of the city extending from Boca de Tomatlan tomatlÃ¡n to The nayarit. border
1 Powered boats less than 7m in length and whose maximum speed does not exceed 7 knots, may show an all-round white light instead of sidelights. If practical, these ships should also show sidelights.  Powered boats must show sidelights and either an all-round white light or a stern and masthead light.
Required features. 1  Your dive flag must be either the red-and-white flag, the blue-and-white Alpha flag, or both as required by local regulations. 2  The staff needs to hold the flag high enough so boaters can see it, even with waves and chop present.