In public places (and therefore also when hiking in the mountains) it is mandatory to keep dogs on a leash. 
Dogs can travel on the Seiser Alm Cable Car and all lifts (with a lead and muzzle for safety reasons). Prices for the transport of dogs can be found at
www.seiseralm.it/cablecars.
A ticket must be bought for dogs travelling on
public transport and on
Seiser Alm Express (bus no. 10), and free of charge on
shuttle buses to the Seiser Alm Aerial Cableway valley station and on the
Almbus (bus no. 11). Leads and muzzles are obligatory. Guide dogs and small animals that can be held or sit on a lap travel free of charge. For orientation purposes: Animals that fit into a carrier box measuring a maximum of 70x30x50 cm do not require a ticket.
Dogs are not permitted in a number of areas, including
children’s play parks, school playgrounds and cemeteries. These areas are signposted accordingly. Private property may not be entered or used as a dog toilet.
Please meet the cattle with special caution. Go in between cattle and dog, leading your dog the opposite side. Don’t run, the animals react to fast movements! Pass them calmly while keeping an eye on them. Should the animal come at you aggressively, unleash your dog so he can get to safety faster. The cattle will be distracted and you’ll be able to leave the dangerous zone calmly and fast paced.
In the Winter months there are numerous walking trails. Please be careful not to stray onto
cross-country skiing tracks with your dog, as they are reserved for skiers.