Weight restrictions can be imposed on certain activities. A weight restriction can ruin the day for a cruiser if they violate them. Two activities that come to mind are for horse back riding and cable slides. The maximum weight for each was 250 pounds. Most people would not be concerned about this weight restriction since all cruisemates are slim and svelte, but if the cruisemate is a bit portly it would be better to check beforehand so that you are not disappointed.
Disclaimer: Some activities of the type mentioned may not have any weight restrictions. This depends on the operator. This caution is extended to help cruisemates have a more enjoyable time.