The invention relates to a buoyant board (10) for water sports. The board includes a vertically flattened elongated body (12). The body has a lower face (14) for contact with water, and an upper face (16) for supporting a person, the lower face and the upper face meeting along a peripheral edge (18) of the body. The body is constituted by a pair of end parts (20, 22) and at least one intermediate part (24, 26) which is located between the end parts. The parts are arranged in series in abutment, and are separable such that each intermediate part is removable and optionally replaceable, to permit adjustment of the length of the body and to facilitate transport of the board when the various parts are separated. The invention extends to a backpack (110) for receiving the board, and to a kit comprising, in combination, the backpack and the board.