ISBN-13: 9781517403256 / Angielski / Miękka / 2015 / 96 str.
ISBN-13: 9781517403256 / Angielski / Miękka / 2015 / 96 str.
Swimming constitutes a "complete" workout in itself, not just in terms of the muscles, respiratory and cardiovascular system, but also in terms of functionality: diving, rescuing, swimming, transporting, etc.