Georgetown's Main Street hosts Britain's High Commission to Guyana where Caribbean coastline meets Amazon rainforest and oil boom transforming economy. The mission also serves Suriname from single post covering two former European colonies with British serving as non-resident ambassador. British engagement focuses on Guyana's massive offshore oil discoveries since 2015 where ExxonMobil-led consortium attracts British petroleum service companies and transforms former agricultural economy into oil exporter. Historic connections run deep with large Guyanese diaspora in UK, English language shared from colonial period, and Commonwealth membership maintaining institutional ties. The High Commission supports British businesses in emerging oil sector, facilitates trade relationships in traditional sugar and rice exports, and coordinates development aid supporting infrastructure improvements. Limited British tourism visits Guyana's pristine rainforests including Kaieteur Falls among world's tallest single-drop waterfalls, wildlife including jaguars and giant otters, and indigenous communities. Staff provide consular services for British nationals in small expat community, process visa applications for Guyanese workers and students heading to UK, and coordinate security cooperation. The mission monitors Venezuela border dispute over oil-rich Essequibo region affecting regional stability, supports British interests in Caribbean Community CARICOM initiatives, and facilitates educational partnerships while managing dual-country responsibilities including Suriname's Dutch colonial heritage and ethnic diversity challenges across both nations.