That was pretty good...had I had access top place like that I would have had a blast, like Trap I grew up in the 60's and 70's...no helmets, no belts...it was balls-to-the-wall danger and fun...so while we didn't have a park like that, we made our own fun...we turned anyting we could get our hands on into a dangerous toy...a go (death) cart to hurtle down a road or a steep hill, going off jumps with our bikes and with the winner being he who could ride longest, fastest or jump highest...if we went home clean and unbloodied we obviously didn't have fun that day. And it didn't matter the time of year...winter just meant discovering new modes of going faster, farther and higher...we probably all have had as many concussions as any cry-baby athlete of today...we used to jump off train tressels and road bridges into creeks and rivers...we used to play in construction sites a lot, man, can a kid with a lot of energy and creativity get into a buttload of dangerous fun at construction sites! We used to walk and run on partially erected walls, nothing to step on but the top edge of a 2x4 frame and rocks, nails, cement, wood scraps and dirt awaiting below...we used to get real firecrackers back in the day...M-80's...the good ones that really went bang, man did we blow up a lot of stuff, old models, small trees, crap we found...whatever, and we never lost a limb or digit...we used to make Polish Cannons and shoot flaming tennis balls at each others heads and crotch, we made tree forts and ground forts and had all-out wars with dirt clods, rocks, sticks...used old innertubes and whatever we could find for sling shots...we made rafts and floated them on ponds and resivoirs, we speared carp in creeks, we fished normal like a lot too, and shot many a small critter...we had it pretty dang good, a lot of blood, bumps and bruises and lost skin along the way (some broke bones, not me, not counting cartilage) and we wouldn't have had it any other way!