Poster Cat Ba Island, Hai Phong, Vietnam, in a classic

Travel poster featuring Cat Ba Island, Hai Phong, Vietnam, in a classic retro travel-poster style. Central focus on the dramatic limestone karsts rising from emerald waters of Lan Ha Bay, with hidden beaches, floating fishing villages, and small wooden boats drifting between the islands. Lush tropical forests cover the cliffs while soft golden sunset light reflects across the calm sea, creating a tranquil and adventurous coastal atmosphere. Rich color palette of jade green water, limestone gray, tropical green, and warm sunset gold. Clean graphic illustration with subtle vintage grain texture. Bold vintage typography headline: “CAT BA – GATEWAY TO LAN HA BAY”. Vertical 2:3 layout, high-resolution, print-ready.