This is part 41 of the puzzle series Around the World in Many Days. Each part is solvable on its own.
This is a Word Nurikabe puzzle. Shade some cells in the grid. Shaded cells must form one orthogonally connected area, and no 2x2 square can be fully shaded. Each unshaded area forms a snake-like shape that has a start and end point and does not cross or touch itself. (More formally, exactly two cells in each unshaded area have one unshaded neighbour, and all other cells have exactly two unshaded neighbours. Note that this also means there can be no 2x2 square entirely unshaded in the grid.) Write in the given answers into the unshaded areas, each starting at one end point and ending at the other. Answers can be written in any direction. Given letters cannot be shaded, and every unshaded area contains exactly one given letter.
ANTIQUED CROWN JEWEL DIG OUT FRECKLY FOXY JUMPING JACK KIBBUTZ QUIZ SHANGHAI VAMPISH VEXING
Today I have admired colourful lakes, rivers and waterfalls in a high-altitude nature reserve. Can you guess where I am?
Gladys will return in E Rebus Unum.