▁Gam le h au gen ▁was ▁renov ated ▁between ▁ 1 9 8 9 ▁and ▁ 1 9 9 1 ▁in ▁prepar ation ▁for ▁Har ald ▁V ▁and ▁Queen ▁Son ja ' s ▁first ▁visit ▁as ▁king ▁and ▁queen ▁cons ort . ▁Crown ▁Prince ▁Ha ak on ▁res ided ▁at ▁the ▁m ansion ▁while ▁he ▁attended ▁the ▁Royal ▁Norwegian ▁Naval ▁Academy ▁in ▁the ▁ 1 9 9 0 s . ▁ ▁Park ▁ ▁Prior ▁to ▁Christian ▁Mich elsen ' s ▁ac quisition ▁of ▁Gam le h au gen , ▁most ▁of ▁the ▁property ▁was ▁used ▁as ▁far ml and . ▁Mich elsen ▁gave ▁the ▁task ▁of ▁converting ▁it ▁into ▁a ▁large ▁park ▁to ▁gard ener ▁O lav ▁Mo en , ▁who ▁later ▁became ▁a ▁professor ▁at ▁the ▁Norwegian ▁University ▁of ▁Life ▁Sciences . ▁Mo en ▁wanted ▁a ▁park ▁domin ated ▁by ▁ever green ▁plants ▁and ▁trees , ▁however ▁Mich elsen ' s ▁wish ▁for ▁a ▁fruit ▁garden ▁won ▁out ▁in ▁the ▁end . ▁The ▁park ▁was ▁designed ▁as ▁an ▁English ▁garden , ▁ad her ing ▁to ▁the ▁natural ▁lines ▁and ▁curves ▁of ▁the ▁landscape . ▁The ▁a venue ▁which ▁today ▁leads ▁from ▁the ▁main ▁road ▁to ▁the ▁m ansion ▁is ▁a ▁bar o que ▁element , ▁un famil iar ▁to ▁the ▁garden ▁as ▁a ▁whole . ▁ ▁The ▁park ▁has ▁been ▁open ▁to ▁the ▁public ▁since ▁the ▁state ▁acquired ▁it ▁in ▁ 1 9 2 5 . ▁The ▁fruit ▁trees ▁and ▁bush es ▁which ▁were ▁plant ed ▁when ▁the ▁park ▁was ▁first ▁laid