Prefixes - Tour

Field	Type	Sort	Sample	Description
length	Query.Integer	Yes	q=length:[* TO 500] sort=length asc	Filtering of data based on the length of the tour in m. Ranges should be used here. ([1000 TO *] = tours with min. 1km in length)
difficulty	Query.Integer (0-5)	Yes	q=difficulty:[* TO 3] sort=difficulty asc	An indication of the difficulty as integer value. The values of 1-5 are possible. (very easy, easy, medium, hard, very hard)
duration	Query.Integer in s	Yes	q=duration:[* TO 6000] sort=duration asc	Duration of the tour in minutes. Ranges can be used. [60 TO *] = tour with at least one hour duration. [15 TO 30] = tour in the range of 15-30 minutes.
altdiff	Query.Integer	Yes	q=altdiff:[* TO 300] sort=altdiff asc	Altitude supervisory and descent. Ranges can be used.
elevmax	Query.Double	Yes	q=elevmax:[* TO 1000] sort=elevmax asc	Maximum height above the sea level in meters. Ranges can be used.
elevmin	Query.Double	Yes	q=elevmin:[500 TO *] sort=elevmin asc	Minimum height above the sea level in meters. Ranges can be used.
round_tour	Query.Boolean	Yes	q=round_tour:false sort=round_tour desc	roundtour:true returns tours, if they are a round trip When sorting, please use "sort=roundtour desc", if the round trip objects should appear first.
rest_stop	Query.Boolean	Yes	q=rest_stop:true sort=rest_stop desc	reststop:true returns tours, where there is a possibility of refreshment along the tour. When sorting, please use "sort = reststop desc", if objects with a possibility of refreshment along the tour should appear first.