Sentence:  By one o'clock the place was choc-a-bloc. […] The restaurant was packed, and the promenade between the two main courts and the subsidiary courts was thronged with <WSD>healthy</WSD>-looking youngish people, drawn to the Mecca of tennis from all parts of the country. 
Meaning of the word marked with <WSD> tags:  Enjoying health and vigor of body, mind, or spirit: well.