I am going to dreamworld with my kids tomorrow. I am a pretty overweight person and hold most of my weight around my belly. Could anyone recommend rides that I can go on (if there is any). I have spoken to dreamworld already they advised they have no weight restrictions but it depends if the safety harness does up or not. I’m thinking maybe the log ride will be ok but haven’t been there since I was like 15. 

Any suggestions would really be appreciated! 

I think your only problem would be with Gingy's Gliders off the top of my head. Otherwise, Dodgems and RHLR are easy.

MDMC is for skinny legs only. 

Depends if it’s jelly or rock... if you can “move” it around you’ll have more luck

kids/family rides that may be difficult based on harnesses would be Dronkey Flyers, Gingys, Claw and if we are talking toddlers then Big red boat & id imagine the Ferris wheel would certainly have a total weight limit. 

Madagascar can be a pretty tight fit, depending on your body shape.

The Claw and the Giant Drop can be pretty restrictive too, mostly due to the seatbelts. I am not exactly "large" but having broad shoulders and thick thighs can make things pretty hard on those two rides in particular...