Since your party is invite only, pick a deserted place where not many people pass by, such as Isfadar, west of Gu' Tanoth, east side of Burgh De Rott, desert, Mort'ton/Mort Myre swamp, or in the middle of Karamja. Or you can always make the party be at a deserted dungeon, such as the Zogre one. Congrats on 85 slayer. :) Edit - I like Hypno's idea (even if he has a newb ring instead of easter ring) of being on the top of a roof. You can also do that in Burgh De Rott.