i've managed to convince 4 mates to pop over on the thursday till saturday of race week and want to make it the best experience i can for them (none bikers)

plan for thursday is douglas and drinking
friday is watch the racing, in the past we have watched from bray hill, signpost corner, etc
Can anyone name any 'spectacular' places to watch within walking distance from Douglas, want somewhere that will blow their minds.
Friday night is the closing party
Saturday..any suggestions? they dont leave till 7:30pm

public transport only options.