From Lonely Planet: Taxi
Several taxi stands are dotted around the town center. Sample fares are BZ$20 to the Guatemalan border (9 miles) or Crystal Paradise Resort (5 miles), BZ$60 round-trip to Xunantunich, and BZ$80 to BZ$100 one-way to the Mountain Pine Ridge lodges.
Colectivo taxis (charging per person and leaving when they have a full car) head from a vacant lot on Savannah St to Benque Viejo del Carmen (BZ$4) and the Guatemalan border (BZ$6). Taxis to Bullet Tree Falls (colectivo/private BZ$4/15) go from Wyatt St, just off Burns Ave.
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http://www.lonelyplanet.com/belize/...sport/getting-there-around#ixzz2vwVDOYxC