Most fisheries abraod and some in the Uk, particularly in the North of Scotland, provide their own accomodation and insist you stay in it. Usually it is a lodge but occasionally a hotel or holiday cottage. Some times the accomodation is voluntary and sometimes it is included in the price of you fishing and some times extra.
To check the situation with any fishing that you ar considering booking, look carefully at the right hand notes column in the booking lists for any of:
HE = Hotel Extra, HI = Hotel included
BE = B&B Extra, BI = B&B included
CE = Cottage Extra, CI = Cottage included
LE = Lodge Extra, LI = Lodge included
An 'E' stands for an extra charge will be made.
An 'I' stands for charge included in fishing price.
Either way you have to stay in the accommodation provided.
The notes column is only a guide, so you should always check the fishery's description as well (click its name in Beat/Fishery column of the booking list)