Carver, previous to my arrival, attempted to overcome the difficulty by heading up all the creeks, and he ran a trial line upwards of eight miles (13 km) in length, but this brought him to the summit of the range from which there was no getting down. Similar things were written about the route along the River itself: [There was] a confused jumble of huge boulders and rocks covered with thick brushwood closely interwoven with vines and creepers... a quarter of a mile per day of setting out is the most I can manage..." Besides the terrain, problems were also found with the proposed descent from Bulli to Wollongong. Stephens found that any proposed railway would have required a series of zig zags to enable trains to climb the Illawarra escarpment. The committee presented the route to the New South Wales legislature in 1876, but despite a pledge of £740,000 by the legislature towards construction costs, and petitions from Kiama coal-miners, it was rejected. Construction The Government undertook no further surveys until 1880, when a new route was approved. This route originated near the inner-city locality of Macdonaldtown and ran to Kiama via the locality of "Bottle Forest", a distance of . The route selected comprises the present-day route, although minor deviations were made between Waterfall and Coal Cliff between 1915 and 1920. On 6 April 1881, Governor Augustus Loftus assented to Act 44 Vic. No. 28, which provided £1,020,000 for the construction of this railway, and proposed that the first section of , constituting approximately the present suburban route, be completed by 30 September 1884. Almost immediately, concerns were raised about the new route's viability, most specifically over the cost of tunnelling between Waterfall and Otford to reach Wollongong. Construction of the various sections was awarded by tender and commenced in October 1882. Work was suspended past the point at Como, and Government surveyors were instructed to re-survey Stephens' work on the original route. Their work allayed concerns about the new route: although the new route had more tunnelling, excavation and sharp curves, the total cost of the "Bottle Forest" route was estimated at £130,175 less than the original Port Hacking route. The Minister for Works eventually agreed on this new route, although construction was again briefly halted when the contractors refused to recommence work on the disputed section. With new contractors hired, the line was completed to in