Написать в форме the present continuous tense: visit london,climb a mountain,swim in a lake,ride a horse,row a boat,travel by plane,play basketball,sail in a submarine,watch an eagle

To be visiting London, to be climbing a mountain,to be swimming in a lake,to be riding a horse,to be rowing a boat,to be travelling by plane,to be playing basketball,to be sailing in a submarine,to be watching an eagle.